Bloviate: to talk at length, especially in an inflated or in an empty way.
There's no shortage of non trolls who can pull that off with ease.
The thing that mystifies me about the trollish is the crashing lack of subtlety. Surely if you were truly committed to the cause you'd be carefully weaving your doom inside conventional posts.
It's the equivalent of trying to seduce a woman the first time you meet her by draping your cock across her top lip and bursting into tears.