I don't mind someone asking questions, making offers even if I don't have that option enabled, making low-ball offers (which I will deny), reasonable requests after purchase, etc.
...but get weird or even slightly sketchy and that's a block. Do weird stuff after purchase, cancel and maybe block.
With all the easy and straightforward sales, I don't have the patience to deal with trying to figure out if someone is socially awkward on the internet or trying to get away with something.
It's one thing to lose a sale, it's another to lose money and time on a crappy "buyer."
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