Pleased don‘t give up. Even though I occasionally received unsolicited comments, I sold a lot of my gear here and I think most UglyHoggers are nice and decent.
Twice now I have posted here recently and twice I have received unhelpful/unsolicited comments from non-buyers. I give up.
While I’m not clear as what you posted, some are just testing the waters. If they don’t leave a name and other form of contact, just move on. Toss it up to the anonymity of the internet.