[m-r-a-m]

I usually use they, but now that I think about it, I'm going to start using s/he. It's the same number of characters as they and you can just pronounce it like she when reading it aloud or in your head, since she is the underused pronoun anyway.

[angersock]

Use they, because the gender is indeterminate. s/he looks awkward, some some malformed regex.