Hm... I picked up the PSX RM when I was 15-16, so if you count that, it's been about 15 years now. It took about a year for me to find a SNES rom of it online, then not long after that I found RM95.
I've been with an RM product since then. So, well over 10 years now.
It's been interesting to watch how the community has evolved during that time, and how games and the standards of them have changed, too.
I felt I should add more about the Community side of things. At the start I just flitted around from forum to forum, not settling in any one place. The ones I visited most were SkyTowerGames, GamingW, Rm2k.net, Blad2K and a few other smaller, easily forgotten forums. I finally started interacting on Gaming World, RM2K.net and Cedar Woods (which got a rename to Epiphany Gaming after it got hacked to bits ;.; RIP CW<3). After a while I got more involved, though I tended to lurk a lot until RMN got re-invented by WIP and Salt World came into being (though it took me a while to fully move over, so around 2007-ish).
Since then, it's been my main base of RM on the internet, though I do and have visited a lot of other sites.
@Link: I'm pretty sure most of what you see as 'ye olde clubbers' comments are tongue-in-cheek or self-depricating. (Hell, I'm kinda-sorta-a-little ashamed when I realised I've spent literally half my life on RMing as a hobby and I'm sure most others are too. >.<;)
That said, I know RMN used to get a lot of flak by other communities as being an old man's club and 'exclusive' but I think we've been addressing the issue fairly well recently, and what newbies we do get through the door who are serious, we keep. The thing is, a lot of people pick up RM products, but find it too 'hard' to use for some reason and just drop it. Looking at some of the comments and threads on Steam for Ace tells a lot about the current people looking to use the program. You should check that out. While there are some who are very enthusiastic, there are quite a few who are very... picky about the program and what it can do for them, especially when it comes to price tag and being able to sell games with it.
Before a legal English copy came out most of us got it for 'free' and messed with it because it was fun and we wanted to recreate the games of our youth. That's not as much the case anymore because to the newer generation picking up the program, the games of their youths aren't the 2D jRPGs that we enjoyed, but 3D, hi-res and complicated. They seek different software.
That said, there are a lot of newbies who pick up the program and love it, but they come to a community and try to post up their attempts at games only to have them hacked up by the standards of that community. RMN is one of the few RM sites that have higher standards for the games that are added to the site, so that seems quite daunting to a new-comer. This is why we probably don't get as many newbies staying as other sites - because the standards are there for intermediate skills and few beginners are at that level. So we tend to get them after they've already learned a few things with the programs.
Not saying we don't get newbies, but that's the reason some leave or never come. Or at least, my interpretation of it.
...and I went a little off-topic. >.<;