I do not think creating a thread for a newbie account is necessary.
It's probably not, but since there hasn't been one like it in a long time it's probably not a horrible idea either. If there are any newcomers to the forum or anyone else reading this who's thinking about selling merits, this is a pretty good warning.
As far as the Susianjery22 account is concerned, my guess is that the negative trust won't affect it that much since it already had a DT negative on it from 2019, and that one accused Susianjery22 of having a whole bunch of alt accounts. I'm pretty sure there are more that were mentioned in the trust feedback, too, since the accounts of farmers are like cockroaches--where there's one visible, there are probably 1000 hiding out in the cracks.
I don't think anyone intends to sell merit they don't have really anything.
It's possible if someone either farmed a bunch of accounts years ago or bought one or more of them that they'd have some merits to sell. The account in question here registered in 2016, which was well before the merit system existed. Whoever owns the Susianjery22 account may well have other, higher-ranked accounts from years ago that would have had sMerits airdropped to them in 2018 (and while improbable, there could be some earned sMerits as well). You just never know.