This is just as much problematical to "Quantify" as is "Trolling".
Different cultures / different people react differently to different conditions -- and also if say English isn't your first language it's quite easy to make small errors which totally alter the meaning of what's being said.
Also if you take part in "Public" debates such as on the Internet -- well you put yourself in the firing line anyway.
The Mods of any site are much better qualified as "Referees" of this type of behaviour.
Politicians should leave this stuff alone, clear THEIR OWN HOUSES FIRST and get the economy working properly again.