I browse the Reddit Hearthstone forums a lot and the sentiment there towards the game is always negative, regardless of the current state of the game.
Regardless of what gets changed or added into the game.
There are a lot of people out there (me one of them), who actually enjoy the game during these times.
Thank you for making such a great game!
Very few people actually criticize the game itself, it is normally a case of pointing out certain aspects that need fixing. Reporting bugs is hardly being negative.
I mainly play Battlegrounds and it is currently very unbalanced. You either win the lottery and squash everyone or you get squashed. There is nothing in between. Skill is irrelevant. That is not being negative, it is reality.
Probably a random NPC playing murloc paladin.