Tony.
I agree with what you've said 100%,
Glad to see you still take an interest in this forum as I don't think other admin. read the forum or answer direct questions.
If an engineer can't tell the difference between a lcd/plasma/crt, then they shouldn't be supprised if they don't get help. Yes, taking the back off is a problem, all those screws, but perhaps looking at the fault before posting might save everyone else some time, time that is given freely on this forum.
If this is a technical forum, then ask a technical question, if this is simply a forum that is here for members of the public to get some free help, have a nose and help put some engineers out of the trade then I don't think I should be posting on it.
regards
Andy