Mailing lists are fine among a limited group of developers. But this is a bad idea for offering help to refer to a mailing list.
Mailing lists are limiting submissions to their subscribers, or not. These days, no one, not even hard core developers, would want their email box polluted by spammers. So that means no open (anyone can send) mailing lists. But that also means anyone just needing some quick help has to become a subscriber to the mailing list, first. Not only is that a hassle...
