When I started playing MMO's years ago, the idea of meeting random people in the open world seemed awesome to me. In Phantasy Star Online, it meant you either hanged out in one of the many lobbies or you would create an open game, which 3 people could join if interested. I mostly ended up duoing zones with
zeikfried999 in a password protected game or with a bunch of people from my Team (PSO version of a guild). Maybe I was just too antisocial, but I never really felt like there was much of a community. About 75% of the created games had a password on it.
Eventually I started playing WoW, mostly with with
aien_hime, tho did end up in a bunch of guilds. When they realised I was a female, several would spaz out and be all amazed, what it was like to be a female gamer. I wasn't aware we played games differently. In the early years, most of those guilds had the ambition to raid, but would disband after some months due to not having enough people (40 were needed back then!) to do so.
The first expansion came out, had mostly fun with my IRL friends. Eventually joined an actual raiding guild, learned a lot from the people in there as a complete noob, which I am still grateful for, even if I ain't in that guild anymore. The server itself was at its best, it was one of the younger servers, but with quite some active guilds. Community meant something if you truly wanted to raid. If you were an asshole, it generally meant you would have a terrible time finding a guild to raid with. So you either had accept that, or get a name and race change, or transfer off the server altogether.
Two or so expansions later, I became the Guildmaster of my current guild. Seriously, someone up there really has some weird sense of humor. One day I was just the administrative cleric of the guild (note to self: do not request a promotion, wanting to help out to keep the guild site updated!), the next morning I find an ingame mail from a Game Master, telling me I was the new Guild Master of the guild. Apprantly one of the officers made a ticket to ask to demote the inactive Guild Master, whom hadn't logged for months and it turned out I was the next highest ranked person after that.
I had no intention to stay GM, but now, 2 or so years later, I am still the boss. I do what I do best, administrative stuff. I take care of the site, the guildbank funds, clear out the inactive players, I poke officers to remind them of their tasks. I can live with such responsibilities. No raidleading, no talking on Ventrilo. Just guiding the healer team, assigning some tasks midraid to them.
The guild itself went from 25man raiding during the 1st expansion and most of the 2nd to 10man raiding in the 3rd and 4th. Occasionally I miss the epicness of such a big group, but it certainly is a lot more relaxing to lead. My guildies are a friendly bunch, some of the original members are still around, tho we also had many new ones join us. Pretty much the usual circle of life when it comes to a guild. People get bored of playing a game for so long, move on to new ones. Or join a guild that has better progress in raiding. Or you know, grow up, get kids, a real job.
The guild had its ups and downs, been on the verge of collapsing several times due to no new progress, but we managed to get back up. We are no longer one of the top guilds, we actually lag a bit behind when it comes to killing the final bosses of each tier, but you know what? I can live with that. And apparantly the other guildies don't have issues with it either, else they would have left ages ago.

We only got this bosskill this week, but it feels nice to finally have killed all bosses of this tier. Back to wiping endlessly in the new raid! Not to mention the lovely trash leading to said boss, woohoo.
The community of the server went downhill however. Blizzard introduced a Dungeon Finder tool, allowing to queue up for a random dungeon, ending up with 4 random people from various servers. While it certainly helped to get a get a group even in the middle of the night, it also meant you rarely interact with anyone outside your guild. No more calling out in the general chat for a tank, healer or damage dealer. No longer having to worry about your reputation, as the people you meet in the dungeon finder, you will most likely never meet again. A year ago the Raid Finder also got introduced, allowing you to queue for a simplified 25man version of the recent raid instances. People get to see the content, get some loot. It's ideal for those whom don't have time for raiding at set times. Depending on your role, you will get into a group in 5-50min. You could even do chores while waiting for the queue to pop.
Guilds are falling apart left and right as a result tho. Not happy with your current guild? Make your own! Even tho it will likely collapse again in a couple of months. There are so many guilds around, there is no sense of community left at all. Ofcourse it's also because the game is over 6 years old, people getting bored of it. The game lost some of the magic for me as well, but it's the people in my guild that make the difference. If this guild would fall apart, I would likely just quit playing, as I don't really feel like investing in a new guild community anymore.

When I browse boss kill screenshots like this one, it still makes me proud to call these people my guildies. I may want to strangle you lot at times for going afk at the most annoying times or dying at the silliest times, it's you whom make the guild alive. I tried a more hardcore raiding guild, it felt so silent and unpersonal, I didn't even last a month in it.
I am not sure if you can truly find a community in MMO anymore. Not when there are tools like dungeon/raid finders. I tried more recent games like Rift and Guild Wars 2, but even in those games there didn't really seem to be any community outside guilds. But as long as I can find a bunch of people with the same mindset as me...I am alright with that.
Maybe I should try an RP server, people generally seem to be more involved in the community. A lot more drama at least, if the WoW realm fora post are an indication XD
~*~Maru~*~