I think it's pretty clear what "the flamewar style" means to anyone who's been around internet forums for a little while, but if you want a definition, it could be somewhere in the neighborhood of: conversation that's focused on aggressive/snarky/indignant expression for the purpose of venting and/or defeating opponents, as opposed to curious, respectful conversation for the purpose of learning from each other. These two are mutually exclusive, and on this site we want the latter, not the former. Your GP comment was the former, as for that matter was your reply to me here.