Either don't dish it out (e.g.,"turned medicine into a wikiLOL or a club for a particular point of view") or be prepared to take it. And I really do get tired of all the Wikipedia-bashing (not from you in particular, I mean, just in general), speaking as someone who's invested a lot of time and energy into Wikipedia and knows how well Wikipedia's peer review process works most of the time (not that there aren't embarrassing mistakes, but the same could be said about many scientific journals.)