Only reason I can think of is due to the online deal. That they tend to have better online stuff than Nintendo. Though it seems like nobody ever likes nintendo games at all. Also just playing mario does not count at all. Maybe people just hate japanese base things.
Most Helpful Guy
PC Master race and I spend a lot of time on my 3DS.2
Most Helpful Girl
Uhm... well Nintendo pretty much offers a different array of games than ps4 and xbone. And there are plenty of Japanese games for Ps and xb... but the playstyle is obviously different between Nintendo and the rest. Also Ps and xb offer better online multiplayer experiences than wii, imho. And there are plenty of people playing Nintendo but they're mostly solo play games so of course there's not going to be much discussion about them. And I'm getting the feeling that a lot of the new releases for Nintendo are playing more on nostalgia rather than offering innovated game play to capture attention. I'm not saying its bad or anything, but that's just what I feel is one of the reasons.
Also tbh I prefer xb and Ps ui to wii. I had to go hunting for settings in wii just to change something with the internet.