I wish I could up- and downvote at the same time; I feel like discussions belong at the top and memes at the bottom, but I also enjoy the bits of humor and less information-dense posts at HN, because they help me to humanize the community and they make the rest of the discussions easier to process.

Perhaps a "funny" flag could work?

Kind of like on Slashdot, but with a corresponding "showfun" setting, for the gravely serious user.

A rate or ratio limit for funny posts is needed to not let it spread and dominate the comments, so maybe a heuristic comment identifier that says "I'm glad you're having fun, but this post has reached its meme quotum for today. Have a nice day!" if a threshold is passed would be a solution. That's so much work to implement though...

I'm conflicted re: what to do with these meta thoughts. Perhaps I should set up a blog with essays regarding this, and put it there? I do feel it is on topic as in, "in the HN spirit" and relevant to what I'm responding to re: form, but not the content.