Done throwing away my PS2.
Let's do this, shall we?
So first, Verbose said that some games are too complex (most recently Werewolf and the Nations RP series) and Gary said he'd prefer games that needed the user to start playing at the very beginning of the thread (e.g.: KYM Spirit Week, although some users -- including myself -- slip in). They are pretty awesome, but since I can only play the ones that are much more easy to manage even on school days, flexibility is the only problem I wanted to talk about.
You see, no all of us is free enough to spend an hour or two just to play these MUD-style games. Take me for instance. I have school from Monday thru Saturday, and on every recess I'll try meeting you guys and play a bit and that recess only lasts for 30 minutes. Discount the time I needed to go for a snack and a bathroom break and you'll know why.
So you see, making too much games that can't be simply jumped into at any given time or taking hours to do a post isn't going to attract many users, and in extreme cases causes the entire, might-be-fun-to-play game to run down the drain. Thus we should create some games that is easy to pick up and play, like Flappy Bird, 2048, Angry Birds or Temple Run, well with much, much more words and memes.
EDIT: Some formatting issues.