I've sold a few things on marketplace and have got some strange requests from buyers that i think are AI. I was selling a piece of exercise equipment that has a screen attached to it (rowing machine) and got a request to take a picture with a tape measure to verify the screen dimensions. The product is only sold with one screen size and it was plainly visible in the listing pictures too.

Classic GPTism that. It often asks me to take pictures of things with a tape measure across it.

Been using it to help with a refurb of an old cottage as kind of a super google for old fittings etc.

That could be either lazy buyer or someone who's had a seller tell them wrong dimensions or wrong model for the item. Someone I know from college told me a couple years about how they lied to a buyer about the cheap wayfair furniture was actually part of a sample sale from a big name brand. I usually ask the seller for any info thats make or break for me, but I also reverse google image search the listing photos to make it easier for myself though.