I took a look at doctor877 and I was surprised that it was created in 2013! I can't prove this and this may be a little off-topic but there is a strong possibility that this account changed hands (sold/hacked). There is a long gap in his posts history (2016-2019) and his password was changed multiple times before he became active again.
I would be willing to bet that the account was sold, but it could have been hacked. Either way, it would be extremely unusual for someone who registered in 2013 to be participating in some shitty bounty in 2022. Older members who've stuck around that long would go for bitcoin-paying signature campaigns, but if the account was sold to someone who can't write for shit, the new owner might not be able to get into a sig campaign. But who knows. I don't think the use of the same telegram name (and all the other info in the original post) is solid evidence that the accounts are linked, because I've seen members make the mistake of copying someone else's bounty application and forget to change some of the fields in it. Here, though, there's some blockchain evidence in addition to that, so I'm leaning toward them being under the control of the same person.
I don't remember the last time I saw a fairly ranked account registered in 2013 still participating in bounties.
They usually don't, for the reason I mentioned. It's a huge red flag when I see an old account writing shitposts whilst advertising some shady project/exchange/whatever in their signature space. 
