Well offering feedback is expected and technically their duties as a beta participant but the problem is the suggestions that are demanding entire reworks of systems and even worse when they are saying something isn't fun when they're referring to subjective ideas.
I expect nonsense from any forum, especially a general section, but in a beta forum I am disappointed that people treat it like an early access version that they earned by paying beforehand.
Some of the things being suggested are directly against the developers original ideas and this is important to consider the context it all: The game is being polished and tweaked right now. That means that the entirety of the game is complete if not 99% done. The amount of work required to enact these types of suggestions aren't adjusting values on some line of code, it's that plus all of the play testing and double checking that the new values mesh with the flow of the game.
Values aside it's also possible for bugs to be created or multiplied through drastic changes so it's easy to talk about as the consumer but in the grand scheme of things there's so much time at stake here which is already something controversial considering the whole winter 2014 fiasco.