For the record, I would like to comment that receiving merits in a short period of time from other several accounts itself it is not suspicious.
I don't think any of us would suspect of a member of this forum with a proven record and reputation if he/she one day received a couple of dozens of merits, regardless those merits were granted to relatively new or very old posts.
It means nothing, because in the end, anyone with several accounts could do that with the objective to try to taint someone's reputation as merit buyer.
It is certainly possible. That's why it is important to consider all available information, examine the situation from various perspectives in order to make an informed decision and come to a conclusion.
Here's another piece of information that proves the accounts are related, and in my opinion, most likely alt accounts:
TX1:From: 0x0984274936f54ab6d34b6e4c1a8aaa92416e5cfe (ltcrstrbrt)
To: 0x4320379558e74800b37114848e7905695c33624a (bluedeep)
TX2:From: 0x0984274936f54ab6d34b6e4c1a8aaa92416e5cfe (ltcrstrbrt)
To: 0x4320379558e74800b37114848e7905695c33624a (bluedeep)
TX3:From: 0x4320379558e74800b37114848e7905695c33624a (bluedeep)
To: 0x0984274936f54ab6d34b6e4c1a8aaa92416e5cfe (ltcrstrbrt)
ETH address: 0x4320379558e74800b37114848e7905695c33624A
Did you read the discussion thread?
Yes, I did read the whole thread. That's why I see you're having a hard time and reluctant to give concrete answers.