I receive a huge number of spam reports. This also can be seen at xmppbl.org:
This server is now responsible for 9% (was 2% in July) of all reported spam. That sounds like bad news - but also good news! Almost every day I delete accounts, the number of total accounts decreased from 10.000 to 7.000 in less than three months. But this number includes a high amount of accounts which were inactive for more than one year, the number of spam accounts was probably just a few hundreds.
After switching to invite-based registration none of the reported spam accounts was created via this invitation. In my opinion this is a great success!
Thank you all for reporting spam and supporting this server 👍