This does have a smell, definitely: with false pretence pigeon2 draws the watch community's attention to an auction of "s31grg" who is, as Ed pointed out, his brother (monozygotic twin, maybe: same hobbies, same writing

).
Yes, pigeon2 has behaved well so far, no reason to "tar" him. And quite probably he just had the same English teacher as his brother
@ pigeon2: I'm sorry, but without further information the facts make it appear that you are just one of the many "personalities" of your infamous brother Gary. But Ed cleared it up (I hope)
Edit: I just saw you were faster at typing than I am
As you wrote - Ed has cleared it up and you're rehabilitated. But maybe you'd better refrain from pointing us to your brother's auctions in future - or just write openly that you're related to the seller.