Civility subsection suggestion

[johan]

So where would the following response fall?
FU. It might not be your intention, but I think your statements make you sound like a homophobic dickwad. furthermore I find your position to be bigoted and ignorant. 

Is that over the line or under the line? Who gets to decide? And if its over the line, how is that dealt with?

Do you think telling someone "FU" and calling them a "homophobic dickwad" is civil?

Yes. So I ask again, who gets to decide where the line is. Because your line and my line might not be in the same place.