"Bite me!" <-- supposed to be ironic humor, not offense!
... but seriously, yes, the lack of civility is a serious hurdle to progress. There is something positive to be said about a politely skeptical contingent that brings up the questions and doubts that could otherwise be glossed over and ignored but really are important. The snarky, ridiculing scoftic cadre do not. Their purpose is not to improve the research but to derail it. They're fairly effective. On the other hand, by the forum guidelines, this is a discussion forum, not a research forum, so jackwagons that disrupt progress my irritate the membership but so long as they keep the keys clicking, they meet the management objective.
MIB