Sometimes I have multiple solutions to a problem in mind and want to throughly investigate them, but run into a minor road block when investigating one of them. In forums, some of the most annoying threads are people that are trying to help you "solve your real problem" instead of helping with the specific question at hand.
People post some bizarre objective/problem (because the bizarre stuff is what you need to ask about), and half the comments are people asserting that their goal is wrong.
There's no clear solution, though, because half the time the goal really is misguided, and the other half the "right" way is for some reason unavailable. The best answer I've seen is for commenters to offer "you really shouldn't do that normally, but you could try this to make it happen".