As the vast majority of posts over many many years here will show, and as my friends who come to my house to watch tv (On a well calibrated TV) will say, DISH PQ in generally as good, or better than other carriers. If it was that much worse many of us who have been with DISH 10, 11, 12, .....years would have left by now.
So keeping that in mind, read carefully and the poster is saying (my words) --Because DISH does not have 1080P it is bad.-- So in his mind others transmit in 1080P.
"1080i is an archaic variant of HD that was concocted as a way to save bandwidth and is now DEAD"
"I was expecting HD programming on par with its direct competitor but sadly that is not the case. Both the HD receiver and HD DVR I got can only display 1080i. Not only that but the resolution of that 1080i is no better than the upscaled 720p video out of the same receivers."
The 720P remark is/can be actually true but he is incapable of understand that. Plenty of programming is actually in 720P so yes you won't see much difference between the settings. On top of that, many not only on this site but in general feel 720P actually is as good or maybe even better than 1080I at the least up to a certain screen size and your distance from the screen.