Now that you mention it, I think this does occur, although I think most of the judgement is directed at the 'signaller' (or in my language 'panderer') for being vain or duplicitous, although I don't like saying I'm offended by it ("Offense is a sign of a weak and bourgeois mind" says my inner Dali.)

I think that 'pandering' does carry the connotations of how 'signalling' is used, but I'm happy to accept alternatives. One I can think of right away is "appealing to", and I'd be happy to switch from 'pandering' to 'appealing' if you like.