These new accounts can possibly even mean nuked accounts, right? While,I am seeing a lot of accounts being created and never being used, I don't see any reason for it.
for what i have seen those account, or part of them, are being used to participate in all sort of bounties, i have been controling an airdrop spreadsheet and found out many of those users in there didn't exist anymore. I seriously doubt that all those new accounts are created for no reason at all.