Oh man. So many great memories on the forums from way back. I remember when I first stumbled upon the MM forums after playing the game for the first time. I believe it was a different scene entirely, as in, the forum had an entirely different website, with cool custom MM buttons and such.
The years after the forums came out on ActionSoft's site, which I remember to be quite the day indeed, and the mansion building contest for MM2, and the various dramas and fights, etc. All the while new mansions came out with different artistic and creative feel, puzzles and fun. I can't say I've played all the mansions that were created by folks, but I did play the majority. I remember when I attempted to create an entirely-custom graphics mansion (Adventures of Ted?), but never had the time to put into it to finish it. I made maybe 30 minutes of playtime and aimed for like four hours. I wish I finished that. That would've been fun. Shame it'll never happen now as graphics are now in higher resolution. Anyway.
I joined this website in 2006. I don't think you guys realized how young I was. I was REALLY young. I was in grade 6. I was 13, there abouts. :

I just turned 20, going into 3rd year university, and still have very fond memories of MM. I rarely have time to do much on the forums now, not as much as I like. I wish the community was vibrant as it once was, but due to the level editor (as mentioned before in Future of Actionsoft post) only working on older macs, there wasn't much to keep it going, other than the more committed and older members.
I booted up MM the other week and had great fun with all the memories. Such a good game.
Just wanted to share those thoughts.