So like... "Forums are a good communication technology for modern use" and "have you ever found a solution in a forum" are different things.
As a counterexample, I've had more luck finding weird ass computer hardware issue solutions by appending 'reddit' to a search string than just about anything else. On the other hand I've wasted hours and hours on forum threads that go nowhere, with a million dead ends, and terminates in "see this other thread for the actual answer" and then that thread is archived or otherwise inaccessible.