Agreed - I wouldn't put slash in the warnings, but I would put it in the content just so that people could, as you say, weed out what they're not interested in. Although I'm debating even that because the Harry/Ron should tell them everything, without actually saying slash as well. If it wasn't slash I wouldn't put the slash mark in there. But as I say, I'm still considering that.

My warnings section is reserved for kinks and tea :-)