ah, hadn't noticed the "social" part of that quote - I just read it as "unnacompanied singing".

yes, I agree with you that there's not much that's "sociable" about posting up solo recorded performances on the internet.

but ultimately I don't think the degree of "sociability" is all that important.

what's important is:

1. whether the songs and singing are any good.

2. whether among the eventual 365 songs, there are any new discoveries for them that they might like to sing themselves.

"You can't get away from the fact that most people will just treat this as the new set of Jon Boden recordings. Its main effect will be raising the profile of Jon Boden"

Yeah, he's shameless that Boden man :)
Actually, the first thing I thought when I heard about the whole venture was "what a great way of getting some publicity for yourself!" (while also doing something fun)

I don't even especially like Jon Boden's voice/singing, but I'll be listening whenever I can.
They're certainly not rough and ready recordings. They sound like JB knows his home set-up well enough to have established some very good default settings (either that or he's doing a quick mix on each song every day)

I already use youtube frequently when I've come across an interesting song in a book that I've not heard before and I'm interested to see how other singers tackle it.