I have little idea of what «signalling» in the original post meant and asked clarification, but

> not giving a toss ... and just

Is not that (per se, I do not understand it in the context) simply against the whole workings of communication?

A poster diminished the importance of books: I observed that they represent an effort of transmit knowledge and wisdom - which is something "high". The poster mentioned one specific social network: I observed that books represent selection in comparison (to randomness and noise). If anybody is in for the communicational game, those are the proposals. Somebody misunderstood: that happens. If one "does not give a toss", why spending the time (unless one uses the expression "spending the time" for the same that I called "yelling at [running] cars").