Yeah, but why? Is it a feeling? Is it because it's not relevant if you can't immediately read the code since it's not a language you usually read/write in? Once again just curious :)
With HN, from the comments I get an idea of whether or not the language as a tool fits the solution in a unique way, or if it is a novelty.
So even if I cannot read the code, I can mentally get an idea that tool X is a good fit for problem Y should it ever come up for me.
I'd suggest that in many forums it is irrelevant to most and should be left off, but I suspect HN is not a representative sample of the general public and many may share my sentiment.