A corollary to this argument against religion is that people should just "figure things out for themselves". This translates to the astonishing claim that, unlike every other subject in the world, when it comes to spirituality you should completely ignore the accumulated knowledge and wisdom of those who have gone before and basically reinvent the wheel. I guess the logical extension of this would be that once you have figured something valuable out on your own you should refrain from writing it down or telling other people about it, lest you be guilty of "telling them what to think".
The only other area I can think of where similar advice is given is in writing - would-be writers are often told to ignore the advice and instruction of seasoned professionals and just write from the gut. The result is, well, crappy writing. Similarly, someone who tries to build his faith from the ground up without any external input is likely to overlook issues and fallacies that have already been dealt with by others. The result - bad theology.
As writer Clay Shirky pointed out in a different context, "... learning from experience is the worst possible way to learn something. Learning from experience is one up from remembering. That's not great. The best way to learn something is when someone else figures it out and tells you: "Don't go in that swamp. There are alligators in there."