In my experience, people are always going to find a way to be arseholes. If you deal with this problem another more creative one will arise somewhere else. It's kind of similar to the game whack-a-mole, and it isn't a steem thing - it's a people thing.

I wonder if human innovation is really fuelled by advances in security. Close up one loophole and those intent on finding another will evolve into smarter beings and come up with a better way of getting what they want.

So I agree with you. Changes to the code aren't likely to help in the long run. The community here itself will have to step up and deal with things. If would-be-pisstakers knew that pisstaking wouldn't be tolerated, then they'd stop taking the piss.