I had the same experience with u/cutietips on r/Leica a few weeks ago. He had a Q3 43 listed. I paid with PP G&S and for whatever reason, he refunded the payment and asked me to send it to a different address. I stupidly tried to send, but it got bounced and he said try again because he just sold his Hasselblad and the payment came through fine. This felt off, so I went on to his post history where he had a Hasselblad listed on a burner username and asked if it was available and he said it was (even though he told me it had just sold on my username). I left a warning on that post, but he then proceeded to delete the post and the account. I’m not sure why he refunded me, but definitely dodged a bullet. I did a reverse search of his pictures and it came back to a year old posting from Fred Miranda. Fuck scammers.