It's OK mate, you're not being rude. Really all I'm saying is, according to that one video out of potentially thousands of surveys (that's the only time I've ever seen the question asked) there are people who game at 1080p with high-end graphics cards. It's not completely unheard of or illogical. I then backed it up with actual data, not just the comment section of a YouTube video.
As for the Steam survey, the GTX 1080 is very high up in the graphics pole. It's already outpacing the 980ti, a cheaper graphics card that was out for longer. Considering resolutions beyond 1080p makes up roughly 3.5% of the Steam user base, and the GTX 1080 takes up 1.6% of the user base, that leaves all the other high-end graphics cards (980ti, 980, Fury, Fury X, Fury Nano, 295X2, Titan Z, Titan XM, 1070, Titan XP, 1080ti, 390, 390X, 290X, 970, 780ti, Titan, Titan Black) that all are capable of running 1440p to fill in the remaining 2% of high resolution users. That's if all 1.6% are at resolutions beyond 1080p. That's a lot of graphics cards to fill 2% of the 3.5% higher resolution demographic. To me, if I'm reading this right (please do correct me if I'm missing something glaringly obvious my dumb brain isn't picking up on), that suggests quite a few of the GTX 1080 owners are potentially still rocking 1080p monitors. And I also think they're proud of it.