I never said it was dying, but I see plenty of evidence to show it is smaller than it was a month ago, and none to support the contention that it is growing.
I still recommend the game (heck, tried to get my wife to switch from HS just this morning!) And I support the game financially (more than I should) and by streaming (also more than I should). But I am not going to lie to people to get them to join up.
My “do 150 damage to enemy generals” quest took over 90 minutes last night because even though that sounds like 6 wins, it isn’t, and with a 50% win rate it took me about 10 or 12 games. Part of this is because I was not playing aggro decks, and so people would concede with far less than 25 damage done, or beat me before I could do much damage. I will be replacing that quest every time I see it from now on.
As a newbie, it would be a major turnoff.

