Considering the previous remarks in this thread about the posts you were complaining about being rampant, I thought it was a fairly likely assumption. Regardless you are generalizing those posters who are intrigued by the changes in sales trajectory of certain consoles at certain times and are simply and clearly responding in hyperbolic sarcastic manner then assuming those responses somehow indicates that these posters believe the market isn't dying.
Many posters believe the market isn't dying, at least as fast as it is.
We see every week discussion on what Nintendo must do in order to make 3DS sell more than in the previous years.
We had seen posters saying that Vita needed something like MH to emulate PSP trajectory.
We had seen members implying that bad Wii U numbers were solely because it sucked and that PS4 would destroy it, surely selling more than PS3.
We see people saying that 3DS drop is just people migrating to Vita and PS4.
And we have seen users arguing for a new Nintendo handheld as soon as possible to counter the 3DS drop, when it is evident that just releasing a new hardware hasn't worked for Vita, Wii U and PS4.
We have many examples of people who don't believe the biggest problem of each console is that the market is shrinking. They use the seasonal fluctuations to argue that the problem is not with all the consoles, just with some. And "console-war warriors" attribute the cause to the fact that the hardware from the other company sucks.
I never said that it is the majority of people who don't believe the market is collapsing considerably, but it is obvious that some users believe it is particular problem of a few systems.
Or at least they make it look like that, since they try to make analysis of the market and predictions over one or a few weeks numbers instead of considering months or years. People ask for reasons for every minor sales spike of a system in a downward trend. People create baselines and make it look like if a certain system drops to a certain number, it is doomed, otherwise it is not. All those posts make it look like they don't think there is a problem with the whole Japanese market, but a specific problem of one system.