@anonsteem created the @community321 account 12 days ago.
https://steemd.com/tx/a0ebc4761c92f197b0bc76bab5fc95c59eef19ad
However, shortly before the Steem HF23, community321 appears to have changed the keys in https://steemd.com/tx/e6d0d03d4d3c8e2d05f7d636a13f2a4422e0b52b (10 minutes prior to the fork):
If Sun changed the keys, this would indicate anonsteem was not behind the STEEM rescue. However, it's possible anonsteem could have submitted this account update transaction, which would mean Sun is now unable to transact with community321. @onthewayout does that make sense?