Mostly, I care about fixing typos, grammatical mistakes, and the like. I don't expect to be making much content-related edits as I tend to be a generalist and an autodidact; I have an impressive breadth of knowlege, if shallow and unreliable.

I strongly prefer serial commas, but a sentence ending in a preposition is something I'm okay with. I'm not thrilled about the singular they, but I'll let it slide. Ditto for split infinitives.

I like IPA pronunciation guides. I prefer metric measurement units, but I don't have an intuitive understanding of them, having been born and raised in the U.S. I play the piano. I like Scheme. I use perl, probably even when I shouldn't.

I think a list of userboxes, because the box dimensions are usually inconsistent, look messy. Including this one, which I liked anyway:

This user knows how to travel 1 mile due south, due east, then due north and end up where they started.