This "shit" (which take is not much though, most of it you do once and as you're probably already using email, using a good mail user agent will help you in other ways too. And I only wrote that "much" to answer to every point of OP, it's a few lines – attention span really has gone down hill.

And what better system? Git(Hu|La)b et al.? Yeah no, you definitively didn't use either much in a collaborative way to just call them better, besides being centralized locked-in. Or what's actually better there? I'd love to hear actual arguments and experiences from someone collaborating with hundreds of other people on a project on these Labs/Hubs, not some hand waved name-calling that adds exactly nothing.

GitHub, while far from perfect, offers a way better issue tracker than mailing lists.