I guess I'll see the pilot when I get the dvds eventually... It looks like "Epitaph One" will air in the UK/has aired this week (I'm confused about dates this week) so woo-hoo! I had to give up ideas about not reading spoilers early on after joining the whedonland comm. Anyway, it is almost impossible for a UK viewer not to get spoiled following any US show via the internet on forums, fic sites, LJ comms etc; this includes such innocent activity as looking up cast members on imdb.com or looking at google images *sigh*. So for my money, I put "fair game". And hell, it would be worth spoiling myself to read the wonderful fic on this comm :)
Since the pilot is AU for the rest of the series (I assume? I haven't actually seen it yet), it probably shouldn't count as spoilers. "Epitaph One", I dunno though...some people probably plan on getting the DVDs that haven't yet.