Definitely agree with the principle of making primary data available. I've rarely asked people for their raw data or master images, but in every case have learned a lot, particularly someone with a similar system imaging from same site (Marc
)
It is a bit more work to make big images available, but hopefully most people on IIS would be prepared to share originals on request, and even if the answer is "no" you would be disappointed to get any attitude from most in the IIS community.
On a related note, multi-user integrated images can also be fascinating. Would be nice to see a few more joint efforts here. The quality of images is just so good in recent years but many of us are still limited to 1-3 nights of data collection.