That first link, anyway, is pretty over the top. The second was more along the lines of what I remember, with people saying he had potential to develop into a really good player.
Thanks for pulling the links. The context really does help.
Overall, I think you remember it more correctly than I did. There was a few crazy threads, but probably only 2-5 posters with outrageous expectations in a thread. Everyone else was more measured. There was one thread in summer 2012 of "Does Dallas have the best secondary on the NFL?", but no real Johnson comments. Couple of other threads talked about safeties and 1-2 posters project Johnson to start. Many others lauded his measurables, quick first step and ball hawking abilities from youtube but didnt know if it would translate to the NFL game.
There are some fantastic threads about how Jerome Henderson adds 2 wins per year, We were going 14-2 in 2012 and nostalgia from names long forgotten
It would be interesting to have some threads set aside as all-timers. The Felix Jones being chased by slow things, MSPaint, etc, or when a poster makes a proclamation.