To be accepted for publishing on the Celestia MotherLode, Celestia Addons do have to work in all of the environments where Celestia runs. Is that the problem? Usually the fixes are straight forward but can be time consuming.
Selden,
Thanks for the advice.
That's not the problem as I haven't yet, and probably won't attempt to publish the addon on the Motherlode. I am pretty much aware of the differences between Windows and Linux, although that's not to say that it will definitely work under all environs ... that would be the aim however.
All I've published so far in fact is a preview video rather than the addon itself (which is still a work in progress).
I've since put up a second very short clip with Celestia's telemetry displayed, which in theory should satisfy the doubters. ;-)