A bridge too far?
" Really effective trolling is witty and pointed, not abusive or proselytizing."
I've always maintained that a proper troll has a good command of the language and (if the fishing origins are to be followed) carefully drags the shiny lure through the water rather than chucking in sticks of explosives.
A good troll has you muttering 'bastard' under your breath rather than bold caps of Anglo-Saxon.