Weird activity with the vinyl listings suddenly being flooded by bots with Japanese 7 inch singles

This is an odd one, and very niche, but I only really ever use vinted for buying and selling vinyl records. I've noticed over the past few days a lot of Japanese 7 inch singles being listed, all at £2 each, and mostly by different sellers with nonsense bot names (just random strings of letters), and I can't get my head around what's going on or why.

Each seller only has a handful of listings, they don't have any feedback, they're often exactly the same records, they all have random names like 'werhyrewha' and 'afdsafds' and 'rtgjdtkyhgfk', the listing titles are just '7 inch record' with no description.

I just did a search-by-image of one of them, a 7 inch of Jerry Wallace's Mandem / Lovers of the World. There are currently 10 sellers selling it, all new sellers, all £2 each, all different photos (!), all with bot names. 9 of them have no feedback, one of them has a single 1-star review ('seller cancelled order').

If this is a scam, it's not going to be a very effective one. The items are cheap, not very popular, and surely vinted's refund policy and protections mean that there can't be any stealing of bank details or addresses. I'm so desperately curious - clearly something strange is happening, but what could it possibly be and why? I refuse to believe that they're genuine listings.