In my opinion this is a feature of HN discussions and one of the things I detest about reddit discussions.
Slashdot had the ultimate solution for our different tastes: you could configure a comment type (informative/funny/etc) modifier/threshold. You could say you wanted to see more funny replies and I could say I did not want to see them. It was a tiny bit complicated initially but I think the big impediment to adoption at other sites was the clunky UI. There is not a simple/unobtrusive way to display so many feedback options for each an every comment.
eogas is referring to my profile commentary. What eogas isn't recognising is that just because something has the trappings of humour doesn't also mean it's not crap.
HN has thankfully opened up a little in regards to light humour; that part of my profile was written quite a while ago.