I guess the takeaway from the xz backdoor situation is:

If you’re an open-source project maintainer, and somebody starts getting on your case for not doing enough free work for them, you reply “big Jia Tan energy there” and then block them forever.

@zarfeblong Hard cases make bad law. I'd want to be careful about adopting such a rule.
@mike @zarfeblong while it's one to apply judiciously, setting a few boundaries early and firmly is always worth considering, and when someone's clearly just gonna be a drain then intent doesn't really matter