@examplens I think that this is a pretty clear-cut case of sock puppeting and shilling. They deserve neutral at least, but I don't think that negative would be overkill either.
I think the neutral tag is enough for now, since there haven't been any report of any type on any of those accounts relating to scam, and neither is there any evidence of attempted scam on any of the accounts, a neutral trust as a warning to the owner of the accounts and also to users dealing with with the owner of the accounts would be more befitting at this time.