I would blame Go, which is pretty much nuts as they say in #go-nuts.
/sarcasm

On Wed, Aug 6, 2014 at 11:56 AM, Sam Saffron <sam.saffron / gmail.com> wrote:
>> Is there a way to allow non-subscribers to post?
>
> Yes we can do that, I would probably shield it to go to a particular
> category that can be triaged (each category can have distinct incoming
> mail addresses)
>
> Discourse has a fair amount of spam protection built in but we would
> need to beef up the anonymous mail in stuff if we were to enable it in
> high scale / visiblity.
>
> On Wed, Aug 6, 2014 at 4:00 PM, Eric Wong <normalperson / yhbt.net> wrote:
>> Sam Saffron <sam.saffron / gmail.com> wrote:
>>> Sorry for the very late reply.
>>>
>>> We would be more than happy to host an instance of Discourse for Ruby
>>> talk. We already host http://parley.rubyrogues.com/ (which is private)
>>> and nutted a lot of the mail only issues.
>>>
>>> 1. We support reply via email
>>> 2. We support creating new topics via email (if explicitly enabled)
>>> 3. We support "mailing list mode" in which you get a mail for every post made.
>>
>> Is there a way to allow non-subscribers to post?
>> ruby-talk unfortunately does not allow non-subscribers to post.
>>
>> Good spam filtering is required for open-posting lists, though.  I
>> haven't checked how Discourse filters spam; but ruby-talk (and several
>> other subscription-required) lists still have occasional trouble with
>> spam.
>>
>>> I completely understand the concern about the CLA, despite Discourse
>>> being GPL it does require a CLA for contribution, we have a few topics
>>> on the issues surrounding:
>>> https://meta.discourse.org/t/does-discourse-s-contributor-agreement-provide-an-exit-door-from-open-source/1399
>>> https://meta.discourse.org/t/a-question-on-gpl-licensing-and-the-current-wordpress-debacle/3355
>>> and https://meta.discourse.org/t/discourse-the-gpl-and-per-file-notice/7208
>>>
>>> We would be 100% extracting out reusable bits of Discourse into MIT
>>> gems, for example we have https://github.com/discourse/onebox under
>>> MIT and https://github.com/SamSaffron/message_bus under MIT. I would
>>> be more than happy to pull a lot of the mail processing out into its
>>> own gem.
>>
>> Cool.  It would be great if you guys accepted patches/pull requests via
>> Discourse/email so users don't have to login to GH :)
>>
>>> Discourse has a fair amount of advantages when it comes to running a
>>> large group, you could segment out groups that need more private
>>> discussions, or even have "observer only" categories. Talking about
>>> code is easier with syntax highlighting, markdown has its advantages,
>>> search is better and so on.
>>
>> Is there an easy way to download all messages to a mbox/maildir for
>> offline reading?
>>
>> I have my mail pager configured to do diff highlighting and use the same
>> editor for email as I do for code.  There's also some good local search
>> tools for offline reading.  I use mairix (it understands threading) and
>> I've heard good things about notmuch, too.