QUESTION: is it bad opsec to post a tattoo pic
@HTHR that depends on the location of the ratio and your threat model.
In general, for people who aren't at large risk of state retaliation, and who's tattoo is not overly visible, it's whatever.
If it's on a section of skin that is frequently exposed and you're concerned about targeted state violence, maybe don't post it.
It's an identifier, and in some situations a better identifier than a face, but we've seen your face already.
@HTHR err tattoo. Not ratio.