Yep, once a fan decides they no longer like a player, they micro analyze everything about the player, on and off the field. They attribute bad plays (and losses) to them and good plays (and wins) are ignored or considered exceptions or the result of somebody else making it favorable for them. They share all negative media information and ignore or dismiss any positive media. I'm sure it's typical of all fanbases but exceptionally so for Cowboy fans.
I really wish these type of fans could have every aspect of their lives analyzed (both at work and off-work) and shared with 10s of millions of people and see how they would fare. Especially, when the people start posting many times a day, day after day, why said person sucks at everything. Something tells me nearly every single one of them would be crushed under the scrutiny.