TempSimOscar Your #1 and #3 explains a good deal of what I've seen. I actually gave up on butlers, got one of my sims high enough in bot building to build a plumbot as a 'robonanny' and another as a 'cleaner'. Those do seem to work, but the nanny always wants to pick the kid up and put into the crib, playpen, or something, instead of letting the kids play.
I couldn't ever get into the whole "own" a brothel bit, just seemed a bit too much like "work" (business owning, finding employees, etc.). But I did specify that a few lots are brothels. And, yeah, it's been annoying the crap outta me for a while that they just woohoo right at the front door, instead of one of the
many beds that exist. I've also had issues where the NPCs sent would rather read or do some frigging annoying as hell twerk solo dance instead of doing what a sane person does when they go to a brothel: find a person to woohoo with. (But I keep forgetting that Sims are often nowhere near what would be considered "sane" if they were humans. LOL)
I'd suggest you skip the nightmare that is KW highschools. Gave that a shot. Built my own, since all the existing ones were missing "required" things, per the KW wiki specs. There really wasn't much "kinky" about it, other than an overactive nurse who just wants to feel up the kids every few hours, keeping them from their studies. The headmaster wandered around doing jack shit (with the occasional "time to inspect rooms" notice, but nothing actually happens but him standing like a bump on a log in the room). Janitors are pointless, probably screwed up from whatever (potentially) screwed up butlers. I could see them being related.
Over on another forum, a few people are strongly suggesting going back to build 375. I haven't yet. I think trying to remove KW 405 (chose uninstall, saved the game, exited, deleted the mod & associated mods [animations], started back up) but now my plumbots are missing about every interaction possible in the pie menu on them.
Do you have any recollection as to when it was that things seemed to work better, or what version it might've been? I think I might try to find a copy of KW from the early days of it and see if that actually seems to not make me pissed off hourly by the insanity.
If you can, try finding a version prior to 399. Although with 399 the mail carrier thing did seem to work, at least where the females wanted to drop whatever the F they were doing to go to the mailbox. Now he just stands there forever. Another screwed up thing I've noticed, is that stray dogs, peeping toms, callgirls (if a sim hires one) spawn in the 4th basement level of my home, not outside. Then the peeper looks _out_ the frigging window from inside. WTF.