In Runescape I could just disable the equivalent of /tells from randoms, that'd be nice, though I also have my /tells on a separate channel with a soft bleep, will just check it from time to time if I hear it go off, it results in me maybe missing some messages though, but at least it's not in my face XD

If you pay too much attention to the worst of the worst, it will drive you insane, just try to not obsess over it, I get it, it's unavoidable at times, but we've all dealt with it this long, I play the game because I enjoy it, for friends, if the most I have to do is move my /tells to another tab and maybe blacklist a little, it's not too far out of my way (But I understand these aren't the best solutions compared to the other suggestions) also chatting in other networks/skype, what have you