Valid points about the past, but I fear things have changed.
I have been an XC Skies subscriber since 2008. Have used XC Skies for tasking at Lake Keepit, where I met David. Probably helped talk him into subscribing.
Have tried to help with David's problem. Gave him the cgalli address to which he sent mail 2 weeks ago including multiple return addresses. Tried to log him on using my own computer which runs XC Skies. Looked at his account, listed as expired. David subscribed just a few months ago. Tried to get on the XC Skies forum to ask more, which results in the message:
"You do not have permission to join this forum"... ********!
Tried to e-mail Chris at the cgalli address on David's behalf. There has been no response yet, but it's only three days - of which two are "the weekend", meaning something to some people. Like others suggest, Chris has been responsive in the past so the issue is not spam, spam, baked beans and spam. Of course, it's possible there are unknown issues that are preventing Chris from responding.
In recent years there were supposed to be updates to XC Skies. An android application coming spring 2012, and Chris and I had discussed convergence mapping. Fortunately several subscription-free RASP and other BLIPMAPs already show convergence.
For those in the northern hemisphere, imagine your subscription not working in May to August. You wouldn't be happy either.
Jim