POW Oh no, it wasn't a scam, as he found it himself. I had no input on the matter (he wasn't writing anything, so there was nothing to swap). All I said was that my novel was niche, and he went and searched for me, just to say that he was reading it. To quote as accurately as possible, "I don't leave reviews for unfinished works."
If that's a scam, well, I must be living in another world.
but same to you. Happy hunting, and may the curse of writer's block never befall you.