Not everyone is upset about subs, initial posts and gamescom announcement did show quite a positive reaction.
But hey, if you're positive - most you should do is to say "yup, looks interesting, will wait to try it once", and then not enter the discussion about them - because there's more fun stuff to do - like playing the game for example. Unless you just like discussions - in that case - we appreciate it, thank you.
But if you believe it won't be well received - you can have a great time on promoting your point of view.
Don't get me wrong, we don't wave it off because it's negative, we hear everyone, and if there are legitimate points - we try to improve.
What would be best though - is to see for yourself, and then give feedback.