Do you really think you can boss me around with after our conversations?
Quartly reports affects the stock market. It doesn't tell you how fun the game is, but you might have an indication of how the business is. Blizzard is doing just fine, regardless whatever shitstorm they been in. Essentially, they are somewhat reaching thier target(i.e 3M subs might be low for you, but it might be enough for them to run the business).
If people wants to speculate - they should back it up with the stocks. It very healthy for the discussion, it's a classic approach and it's existential for the business(Bobby K is measured on this metric).
If WoW was about to die, the first signs will be in the stocks.
Equally - if Square Enix stocks dropped - you might speculate, how that will affect FF in case it lacks funding(depending on the strategy, making it P2W, subs or something else. And then you speculate in the consequences).