I perceive most of signalling as a waste of resources and think that cultivating a community which tried to minimize unnecessary signalling would be good.

Correcting spelling errors doesn't waste many resources. But yeah, the amount of pointless signalling that goes on in the nerd community is kind of worrying.

Why do I do it myself? Force of habit, probably. I was the dumbest person in my peer group throughout high school, so I had to consciously cultivate an image that made me worth their attention, which I craved.