Prosfic Sequels and also Out of the Blue

[byslantedlight.livejournal.com]

I just posted this over to Proslit, but I thought I'd post it here too. Quick question...

I've been wondering... what are people's attitudes these days to authors writing sequels to Prosfic written by *other* authors? It seems like it went on alot in times past (famously, the Consequences fics) but I get the impression it's more frowned on now as a breach of etiquette? Does it make any difference if the author doesn't seem to write Pros anymore? (or if you never get a response from an attempt to contact them, cos it's old information, for example?)

This is something I've been thinking about, but I was also prompted to ask by a friend wondering about the fic Out of the Blue by Rob. When I read it I had to agree - it's crying out for a beginning and an end - does anyone know if it has one somewhere? I see that Out of the Blue itself was paper circuit...