Before I became staff the thing that kept me back was that every day something entertained me, be it PD or some stupid shit at bazaar. Nothing felt new but it was just fun for some reason.
Probably goes without saying why I come back now lol
Think its progression and just a bit of a grindy game, no matter what you have you can get more of it. A new car to work for, x amount of rifles/weapons etc. And then theres the cop aspect
For me, it'd probably only be for friends. I liked occasionally going on perp just to go to Projex/Slums and visit random people, be let in, and possibly shot.
Other than that, I don't think I'll ever actively play perp anymore. The repetitiveness of the game and the fact @A1L demoted me for no reason isn't the greatest.