I am sorry that it is really difficult to understand my point. And I do understand the idea of the game jam. The second part do also dement that people plays their game to get feedback. And I do agree it happens to some degree, and that is great, but the 'rate for rate'-posts sending most intention to the few there is tanking part of them. And you can say we all should do this, but this would not help no one.
"..it is share them with others, and seeing what others has done. " is not a contradicting myself because, because many of those posts actorly only plays and rate a very few of the games that is on those posts, and therefor they mostly a way to get attention to their own games.
In general 'Rate for rate' should just be something we do, not something we shall be begging for happening in 'Rate for rate'-posts.
And you are of cause welcome to play my game, and I also hope you will play, rate and give feedback to games that really needs it.