Also, not needing to create yet another account is a big plus
In short: there's a web app for seemingly everything nowadays, but devs stick to mailing lists. In my opinion, mailing lists are very old school, not the easiest to wade/search through and most new programmers are baffled by them (or at least by how to post to them).
You could argue, though, that most new people just use things like StackOverflow nowadays...
That may not be a bug.
To put it another way, good open source projects are good often because the team is experienced and focused.
So? Some of the earliest "web apps" are web viewers for mailing lists.
> In my opinion, mailing lists are very old school, not the easiest to wade/search through
If you're a subscriber, the messages are literally delivered to your email address, you can index them however you want using whatever mailbox tech you want.
If you just want to view them casually, there are dozens of mature web based mail list browsers you can use.
> most new programmers are baffled by them (or at least by how to post to them).
If a programmer is baffled by "subscribe using form A/by sending email to <foo>; post by sending email to <bar>" then i don't really put much weight on their assessment that something is "hard to use".