I mean, I see a usecase for that, given you make a separate community for that, and not, say, spam c/technology with everything posted on XDA. So, kinda like RSS with comments. I personally follow hackaday both here and via RSS.

Alternatively, one can mirror someone who publishes rarely and only cool stuff. I remember mr.d0x being such a guy (now I don’t really follow security-related things much, so mb it’s changed, but I doubt it)