Although I'm a confirmed computer-aholic, I must agree with you: although some overlap with other subjects is inevitable just in order to be able to discuss telescopes, we should all endeavour to stay on point.
PS: Are you feeling your oats, now that the finals of the US Open are filled entirely by Ozzies? Congrats!
Clear skies,
Tom
Thomas O'Hara, Ph.D.
ohara@azstarnet.com