I try not to predispose the reader, but offhand I can't remember if I have pointed out any flaws. I don't think I have. I do point out (without spoiling) if something might squick the reader, i.e. on stargategenrec if I think it has a slight ship undertone I'll warn just to be safe even if I don't think it's enough to consider the story as ship. I warn about non-con, deathfic etc as well. I try not to be too over enthusiastic 'cos that could put people off ... but with some stories I just can't help myself squeeing ...!

If the grammar is not brilliant I won't mention that - unless it's really bad in which case I might say the story is worth reading despite the grammatical errors. To be honest, though, the story would have to be very good for me to rec something like that.

As for my own stories, I don't mind a small criticism as at least I'm being recced (and I know my writing has room for improvement). Large criticisms would make me wonder why they're still reccing me ... would I respond? Don't know. Never happened to me yet.