Well, you have the legal aspect of it and the practical aspect.
Legally, it is clearly stated by MK management that audio bootlegging and sharing is perfectly legal; no notice whatsoever was given that this policy would change because of the Simfy releases; of course it would be illegal to share this Simfy releases; but an audience recording of the same show is by no means the same product, so there is nothing whatsoever preventing the tracker to put these audience recording onlines.
Now, regardless of the legal aspect, would the Simfy sales go down because of the presence of free audience recordings ? I seriously doubt so. As Pottel put it, those who make it to the Spanish city are real fans, who would be definitely buying the soundboard recordings, whether or not they have the option to find an audience reccording.
I'm in favor of sharing them. There are 3 good reasons to do so:
1/We *are* allowed to do so
2/I would not dismiss the interest of an audience recording, especially in today's world where technology allows high quality ones. An audience recording is not necessirily worse than a soundboard one. It is just a different experience. And for some, it may mean hearing again exacly what you heard in the concert room, including the crowd noise - a memory that will be cherished more, despite its imperfections.
3/Our Amercian friends deserve something. They were not treated respectfully (until now at least), so, I would have no remerse providing them with whatever is available.