[dragonwriter]

Downote is for comments that don't contribute positively to the discussion. Flagging is for more egregious violations of community guidelines.

Whether a comment deserves either of those does not in any way depend on the commenter's posting history and to reference posting history in applying them is problematic in a manner akin to the ad hominem fallacy, in that it substitutes a general judgement of the source of an utterance when what is called for is a judgement on the utterance itself.