Wait a minute, I think I see what they're doing here. If they make these "requests" and you say no, then you're somehow a bad person for it. You don't want to come off as "dirty" or "snooty" or whatever, so you give in willingly. How evil!

Personally, as for having to clean a bathroom shared with 30 people at work? No way. Not unless I own the place, and can fire the bad ones who mess it up.