Stop accepting mail from our own remailers?
Basically, yes, except for signed letters from previously authenticated pseudonyms.
I'm sorry, I didn't realize that you wanted to erect a barrier against anonymous newbies, such as "wonderer" and "Dark Unicorn" were recently.
The point is not to erect insurmountable barriers against anonymous newbies. In an environment where 'free speech noise' is a problem, some barrier to entry should be expected. The cypherpunks list already uses one barrier to entry, namely, we use a mailing list rather than a newsgroup. Pseudonyms don't come free, neither in time, effort, nor money. Authentication, in this context, can take many forms. It could be as simple as sending a key to the mailing list server. It could be developed to require someone to vouch for the pseudonym. It could require a sponsor who would read and repost until a separate reputation develops. The point is to put a bound on the noise from disrupters both inadvertent and intentional, not to completely prevent noise. Eric