I don't know about the Ruby community, but I've seen this sort of complaint made about many other online spaces (including HN) and my general finding is that it simply isn't true. The problem is that for a proper call-out, both form and content matter, and most people in a mindset to make call-outs don't seem very interested in norms surrounding either of those things. Especially the part where part of good form is accepting that not all kind, well-meaning people have the same moral values and calculus.
