I don't know it says about me but I wasn't even aware that there was a Facebook group!
For what it's worth I like the mailing list format. It's a bit retro I suppose but there's nothing wrong with it. I use Google Mail and have a folder specially for emails from this list. All messages go instead of my main inbox and I can read them at my leisure. Emails on a single topic get grouped together and can be read in order. I actually find it to be very simple and convenient.