Please. Captcha by default. Email domain filters. Auto-block federation from servers that don't respect. By default. Urgent.
And yes, to refute some comments, this publication is being upvoted by bots. A single computer was needed, not "thousands of dollars" spent.
Crappily malicious username you have there, are you the baddie?
No, thankfully, I only have 0.6% of the villain's capacity.