I'm not and I don't know what happened there. The number of fake-looking reviews went up to ~40 a few days after posting this Show HN, and then started disappea

I'm not and I don't know what happened there. The number of fake-looking reviews went up to ~40 a few days after posting this Show HN, and then started disappearing shortly after. From my developer console stats they seem to have the same exact (older, uncommon) Android version as well, so pretty sure it's a single source. Not sure what kind of scam this is.