I'm fairly confident Atlas posters have declared polls from all organizations outside of PPP and Quinnipiac to be garbage at various points in the past. That's because those are the two solid left-leaning but still reasonable pollsters right now.
Personally I think they're all roughly the same and only mean anything when taken in aggregate (excluding internals or push polls obviously).
This makes perfect sense. Given that this website has a strong left-leaning bias, it doesn't surprise me that many of the users on here disregard any polls which counter their perceptions.