Somebody just registered named "www.tenstringguitar.INFO".
He's posted two "answers" to this question
both involving ugly insults and attacks at everybody who posted answers.
Obviously this guy is knowledgeable about his subject matter, but he's vicious and insulting and also obviously a troll, because he hasn't posted anything else on this site other than these attacks.
I've never been in this situation before but this user needs to be banned. Can somebody please look into that?