Let's not leap straight to 100.
In this case, it reads to me like Dev thinks that the other guy is being sarcastic, and so he's being sarcastic on top of it.
I don't think that he's actually blind to optics and unaware of how this would come across to anyone who missed the context, or to anyone who just took it differently. I think that understands and still posts stuff like this anyway, just to antagonize people and show them how disdainful he is of what they think of him.
It's a "look how much better I am than you" move in his mind, because now they'll all "clutch their pearls" (by getting weirded out from a legitimately questionable joke), and Dev will say to himself, "heh heh, get baited," and congratulate himself for being so much better than them because of their sanctimony or hypocrisy or whatever else he takes from their reactions.
But as far as the original post goes, I bet he really thinks that this is just him being "flippant" and "edgy."