On Tue, Nov 07, 2023 at 09:37:22AM -0600, Bryan Bishop via bitcoin-dev wrote:
> Anti spam has been an issue for the moderators. It's relentless. Without
> access to the underlying server, it has been difficult to fight spam. There
> is some support for filters in mailman2 but it's not great.

Since this is a technical mailing list it would be fine to require people to
pay a non-refundable anti-spam fee, eg via lightning, to gain the ability to
send messages. While this would require some custom software, it's probably
even possible to implement this if a third party is used for hosting, provided
they have some kind of API.

-- 
https://petertodd.org 'peter'[:-1]@petertodd.org