Been green on my side (Note: I don’t connect to whispers, only aws main chat) - Only one connection has dropped today, and no servers have been added to my block list today. (Failed connections block for 5 minutes to wait for the error to clear).
I am pretty sure I have a big enough sample size to be relevant to moobot type connections.
Looks like I had a mass exodus of connections yesterday though - but no alerts about ips being blocked, just connections being closed. those were the main / event server connections shutting down due to no recent ping/message.