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.
We already have existing anti-bot measures in the world that don't involve writing a lame sentence. Also, it's very easy to spoof an introductory sentence. You could train a fairly small language model to do so.