I need to return to that Berssenbrugge/Regretsy thing for a moment, because while there's a real element of embarrassment in Nest, there's also something inappropriate about the Regretsy comparison. Nest is over the line, but not in a flarfy way. Regretsy, on the other hand, is over the line in a flarfy way.
In fact, flarf is the Regretsy of poetry. (I expect this to become the canonical definition of flarf eventually.)
Yeah, you know this is going to come down to puerility sooner or later.