In perspective.... one can do like a lot of us old timers did. Gather info from face to face meeting with another fly fisherman along a stream or in at a fly shop. Befriend an old pro to show you tips....join a local fly tiers club to network. In other words leg work and time. We had no forums, no YouTube videos or even internet for that matter. Those that were passionate then are here now contributing... those that didn't make it this far gave up long ago. As far as curmudgeons well that's the day and age we are in now. Maybe its remorse of the lifelong learning that took place over many years of trial and error that we went through to become considered as a decent fly angler. Now its a few clicks and info is there in front of you.