Manners 101.
DO NOT BASH A POSTER
It's rude, and unnecessary. You may not care about the particular technique or the item being discussed but it's not necessary to interject some sarcasm into the discussion. If you can't say something nice don't say anything at all.

BE POLITE
Ok same as #1, but just because your momma may have spared the rod for you as I child doesn't mean I will..