yes, you don't have responsiblities to give concrete suggestions. But I do have responsiblities to make this forum wiser and more intelligent.
talking theories is hard. I like to talk using examples:
1. 當你批評邊個套戲拍得唔好前, 你有無需要話俾導演聽套戲要點拍先好?
Lower intelligent organisms can only voice out their feelings of like or dislike. But human beings, like me, will try to say my dislike first, then voice out how to make it better... then make a better movie. Or as an end user, my concrete suggestion is I will remember who shoot that movie and not try to see that movie again. That's the concrete suggestion.
當你批評醫生d藥食極都唔好前, 你有無需要建議醫生邊隻葯好d?
Then, I won't use any negative attitude to 單打 the doctor. If you use such kind of emotion, then you're die hard. Then I will talk about it to the doctor and suggest him if he has neglected any of my symptoms... if the doctor still can't solve my problem, I will surely try another doctor... Trying another doctor is the concrete suggestion. Like trying other forum...
3. If I don't like the restaurant... lower level of thinking can only voice out like and dislike, 好食不好食, a higher level of thinking can voice out how bad it is and what bad it is inside.... a even more higher level of thinking can invent or decide how to make it better. You have the right to remain silent on deciding what is better. But pls don't stay at the restaurant and shout and shout... just because there are other people at this restaurant as well. Their mood of enjoying food will be influeneced by you as well. A food originally good will become worse because of what you said... but you do have the right to use a polite way to let the manager know and the manager, in a 資本主義社會, will surely resopnd to you. If you just said, I don't like this food, manager didn't know how to respond and you influence other people, but if you said, I want to hotter or cooler or sweeter or sourer, it is much better to the management level instead of shouting your negative emotions. As it involves much more complicated brain/RAM/speed of your brain, it uses up your resources, so it highly depends on your ability. I hope that our forum can retain high abilitiy people here...