[Minder]

Radical Larry head (or to be more precise: the crouchjump bug) could probably be fixed with some dev attention, but I don't think there is much of that to go around. Even if the jump pack gets removed you'll still be able to do it. There are even more cancerous permutations where you repeatedly crouch and uncrouch, which jigs your head up and down. The crux of the problem there is really crouchjumping. Maybe fixing this could be as simple as disabling crouch inputs while a player is in the air.

I can also entertain an argument for disabling bhopping, because it's trivially easy to use first-page-of-Google autohotkey scripts to spam +jump at rates far beyond human ability. The server simply operates on an honor system of hoping that people won't do that.

Nicol is right about the age of Garry's Mod being a detractor in terms of having your cake and eating it too (having fun + competitive integrity.)