It is a well-known scammer who has just created another bunch of multiple scam accounts. He has been doing it for years and started a long time ago on Steemit already.
The user is directly related to "sujonkhan / buysell-sr" scam group.

Current, new batch of scam accounts:
adriyelwalker
cyberxb
mahfuzur123
shakil-islam
tofayelahammed