I can see where your rage is coming from but to be honest, I love watching these people, mainly when I am on Maxwell. Because on him, I can make him troll the crap out of them if he wants because he is blunt and careless.
For the mate beggers, those are my favorite, I just say "No." as soon as they ask, people around me laugh because of how quick and heartless the response is.
Parent beggers, I've had a few of those, I either walk away if they lay near me or ask them what are they doing. Being a parent begger? Oh okay... I don't want kids. And then I walk away again. They pout and complain and some people get mad at me but I'm just laughing behind the screen.
For the suicidal ones, I will usually see if something is actually wrong and if they refuse to cheer up then I just toss my hands in the air and walk away.
Attention beggers, I will admit those bug me a bit. Usually I just watch them and then slowly start trolling them if I can, sometimes it works, sometimes the person blocks me lol
As for the cussing, I hate to say this, but I really could care less if you cuss or not. I don't do it a lot. The only time when I will say something is if a lot of people are getting mad at them for just tossing cursses out like confetti, then usually I report.