Personally I am not one to post fishing spots in an open forum unless the location:
a) is already well know or experiences significant fishing pressure,
OR
b) is a publicly accessible park, etc.
I do have a number of spots that are not well known (thought not necessarily honey holes) that afford some quiet fishing away from the "popular" spots. That being said, depending on the person I don't have a problem PMing location details, etc.
In some cases, questions like "Where can I catch trout around Calabogie?" are simply answered with a reply to check out the publicly available stocking lists, which have been posted on FH numerous times. Given that the majority of anglers fishing up the valley tend to keep their catch, I won't indicate which lakes are fishing better than others as this info tends to lead to the lake being fished out for the season.
When it comes to trout fishing I have no problems publicly directing people to a region, however providing an "X marks the spot" location isn't going to happen. Part of fishing is exploring new waters, etc.

"There wouldn't have been any butt kickings if that stupid death ray had worked."