its a great idea but i worry for the same reasons DrDoom has said.
i'd love to be proved wrong, but i don't see how they will get 10,000+ alt ppl to a festival.
using DrDoom's examples:
nin might be able to sell out a 5000 capacity venue
and
the cure might be able to sell out a 5000 capacity venue
but i'd suggest at least 3000 of those would be the same people at both gigs, meaning at best you're looking at 8000 actual, individual, real, paying people.
it's like the whole cult/mish/kj debacle last year - you cant just lump together a stack of similar bands and then add all their fans together - it's the same fans.
the thing that might work in this one's favour is that its a festival, and thus might be more appealing to the european gig goers more accustomed and more ready to travel to festivals.
on the flip side, you might also loose a lot of the older crowd who would go to an indoors gig but can't be arsed camping etc - this is especially an issue in the uk where a lot of goths are older, and not as used to festivals as the european goff crowd.
another thing that might also work for it is that it's not strictly goth - as far as i understand it, there's industrial, idm/emb and even some metal bands on there too. that might spread the net wide enough to catch a decent number of potential punters
i'd love it to work, but i worry...
and as for headliners, who's left that would even think twice about a goff/industrial/alt metal festival?