[inopinatus]

My upvoting is much looser. I will upvote as a mark of agreement, or if I liked someone's framing of their point, for a nice story, for alliteration and wordplay, or if they mention someone or something I'm fond of, or indeed almost any other positive response from my limbic system.

Guidelines are a potential bikeshed. I don't think it's a terrible idea, but be careful what you wish for.