An interesting idea I had was that when foraging, instead of the fate system, we had a semi soulbound system, or a straight soulbound system.
Semi system could be something like the fate forageable you find is better when you yourself use is, but isn't as good when you give it to someone else.
Or
Fate things could be strictly soulbound.
This would help reduce the bots because most aren't going to bot their main in a swamp.
doesn't do much for your vacuum problem, although I don't think it is a problem myself. What's wrong with rewarding a person for exploring and investing in exploration and perception. At least they are actually wandering around and experiencing the game world you created instead of staying behind their walls the whole game.