Interestingly they appear to use javascript to disable copy-paste. I was going to copy it into a gist.
I think I set it off initially by trying to complete the captcha using keyboard input, which I actually captured on video: https://www.youtube.com/watch?v=nmbXyP46W9I
After that, this browser's fingerprint got tagged, and I haven't been able to get past it since. But using another browser from the same computer (and connection) worked fine.
Source: https://thehandbasket.substack.com/p/a-conversation-with-the...
(First two entries on this page) https://www.justice.gov/crt/statutes-enforced-criminal-secti...