I've noticed several instances of "that's so gross and low-class" signaling at LW, and agonized over whether it was worth pointing out (that it's signaling). I don't claim that the internal gross-out feeling is affected; I have had similar reactions all by myself, especially to pumped-up motivational speak on e.g. pjeby's site.

I've decided it's still a valid signal, so I won't be bitching about it when I see it, and I'll continue to express disgust at trashy (even if effective) persuasion (I'm so sophisticated!), but I'll try to moderate my actual feelings of revulsion, so (I hope) I can evaluate the content more accurately.