no, no, no, no, no…
forum has been discussed, and ‘we’ don’t want one. it would be another login somewhere that needs to be handled and once they reach a certain size, it just gets messy. Also we’d need people for moderating topics and keep up the regular discussion, nothing worse than a foum where you can hear the crickets chirp. If a mailing list is idle, nobody cares.
Also, all those “features” you get with a forum are really high-degree unnecessary for a normal conversation. I really don’t want formatting, avatars or attachments, and if you need threaded display for messages, all the email programs are capable of that.
I also really like the “push” nature of email, as opposed to the “pull” variant of a forum (except when you subscribe to everything that happens in the forum via email, but what’s the forum for, then?) I also have email everywhere - on my phone or behind the nasty proxy at work, and I really like when I can respond without a flashy html website or even without the need for a separate app for my phone.
Sure, it’s a higher entry barrier for newcomers, but in software-related communities mailing lists are very common and new users might as well get used to that. Also, since our webinterface is google groups, we get the excellent google serach for all the messages - and those people who would post-without-searching are always there, regardless of whether you have a forum or a mailing list.