Comment by bgwalter

Why should he leave? The IETF pretends on its sponsor page (https://www.ietf.org/support-us/endowment/):

The IETF is a global standards-setting organization, intentionally created without a membership structure so that anyone with the technical competency can participate in an individual capacity. This lack of membership ensures its position as the primary neutral standards body because participants cannot exert influence as they could in a pay-to-play organization where members, companies, or governments pay fees to set the direction. IETF standards are reached by rough consensus, allowing the ideas with the strongest technical merit to rise to the surface.

Further, these standards that advance technology, increase security, and further connect individuals on a global scale are freely available, ensuring small-to-midsize companies and entrepreneurs anywhere in the world are on equal footing with the large technology companies.

With a community from around the world, and an increased focus on diversity in all its forms, IETF seeks to ensure that the global Internet has input from the global community, and represents the realities of all who use it.

There is only one IETF, and telling dissenters to leave is like telling a dissenting citizen to go to another country. I don't think that people (apart from real spammers) were banned in 1996. The CoC discussion and power grab has reached the IETF around 2020 and it continues.

"Posting too many messages" has been deemed a CoC violation by for example the PSF and its henchmen, and functionally the IETF is using the same selective enforcement no matter what the official rationale is. They won't go after the "director" Wouters, even though his message was threatening and rude.