Forums are a very good source of information, you just need to be careful about what you write..
Such as..
If you don't want people in "your spots", don't post them. If you don't care, and you're a very generous person, don't post any of them. I fall somewhere in between..

I give my input, but I don't mention my absolute favorite spots, or the spots I fish that are pretty much unfished by others..

And don't worry about other people ****ing at you for what you say. You can't please all the people all the time, and most of those people you can't please are on this forum. hahaha.
That's my 2 cents, take it or leave it, I'm used to people on here not caring what I think..

localknowledge,
 
The internet isn't all bad and keep posting.  I'm kind of inspired by your situation because at 43 I can look foward to learning new trick as this old dog gets older.

I understand that it can screw up fisheries..bad..
But most of the spots talked about are already well known, or right off main roads.

I never heard anyone talking about a hole in the middle of the woods on upper Elk(just an example).
When a lot of people start to give away spots that are harder to access, and actually some time and knowledge to find, then I'll complain.

Last year I walked from Sterritannia to follys camp ground and saw a wopping 4 people and that was at the start of my journey. the jaggers are thick and the river hold alot of nice holes through there. No trails until you get closer to the bridge. Its the holes that are right beside the roads is where I see the most congestion. I only fished the manchester hole 2 times last year one day it was when the Steelers played the browns and erie had 15 inches of snow in a hour so I was lucky. then the next was late season. But when I went up in Sept last year I drove down just to see the funny site of a million guys fishing that hole. Steelhead fishing is so addicting. everyone who does it loves it.

I understand how no one wants to ruin the sport or harm the fish. Im catch and release 90% of the time I keep about 4 a year. I want people to enjoy it and see how much fun it is that why I report, when where and what. But thats in an entire day of fishing I move around so much between starting at walnut and finishing at elk. So I know Im not going to be able to give great detail. I always get to fish my 3 favorite spots and as you guys see I post them alot and I rarely have to deal with being  surrounded by people. And when those spots do have people I find a new one. 

where would there be posted signs? only area I saw them was around the 1 bed where there is a really deep hole below a parking lot but you can fish it from one side of the river. every where else I walked in the stream and didnt come across any signs. Every where else I saw a posted sign that people werent aloud on the section of stream there was a big sign that said no stream access. but not on that section i fished.

yea thats where I saw them, but that side where the cliff is you can fish in the water a few feet. but Ive seen a guy walking his dog down there askin us how we were doing, and always see this guy and his 2 friends from ohio there who called that his secret spot. 

good call, I never thought of that. I didnt find that spot myself was taken there so I just figured as long as we stayed off the land and didnt walk through the woods or leave trash behind then it was fine. but I see what you mean.

would anyone know who owns that land?

Other sites esp. New York based sites have learned long ago not to post specific info on fish location. Not fisherie.
its really a no-brainer.