I checked a dozen of these accounts, and none of them have any activity. I assume these are all socks/bot accounts because new users would be using their accounts. Thanks for infesting Hive with more bots and socks to mine the rewards pool, I guess.
Edit: I kept looking, and I did find @trivix, an account ref'd by Peakd, that has posted. Yay! So that's like .5% of these accounts that have some activity per a random sample. However, that account is posting to Vibes, so it's likely a sock puppet from someone that is using this account for that purpose, rather than a new user fresh to Hive.