Or Blue posts. They invariably post to reiterate the proper appeal method. Occasionally they will post on whether or not the appeal would be successful.
They only announce ban waves some of the time. They no longer announce numbers. The numbers don’t mean much. There would still be accounts that look like they are botting in both retail and classic. Ones using a different botting program than the one targeted by the ban for one. Accounts not actually botting for another.
The number of accounts “botting” doesn’t actually tell a relevant number. In quite a few cases, the botting is not being done by the account holder but by a criminal organization that hacked the account. If that account holder gets their account back, the ban is generally removed.
They sometimes announce them in General Discussion and Classic General Discussion.