For starters, Thanks for introducing me to the Oxford commas term. Always wondered why some people do it one way and others do it the other way.

"...taken a few of those friendships to other platforms..."

Other platforms!!!! What other platforms???? Paleeeeeze don't say Facebook or Twitter...

And regarding this...

"Is that all it is? A quid pro quo? You scratch my back I’ll scratch yours? Reciprocal reading? Street corner hand jobs for writers? Literary mutual masturbation. That sounds good; I’ll have that."

Paleeeeeze, paleeeeeze, paleeeeeze NOT THAT!

There was a lot of that on the Vine... That is such a hollow, meaningless, insincere modus operandi. I think that is part of what brought the Vine down.