Apparently you see only 1/2 of the idea of jams.
1) yeah - community is huge part and I thing me, with playing and rating 40+- games and giving feedback on most of those is giving to the community the most I possibly can with my free time...
2) The second part is learning how to gamedev. I always got so little feedback and plays I never learned what I did wrong. Now I have ton of feedback, plus I played games from active members of the comunity. I DONT SEE THE ISUE.
And I quote you "..it is share them with others, and seeing what others has done. " This is literally what the RATE-FOR-RATE posts DO >"I am sharing mine and play yours", You are contradicting yourself.
If you dont like it, write to Itch.io support so the change the system, but with how things are curently, it is nessesery for many to get ANY plays, because NOONE is using the "least played" filter...
And one more thing... I will play your game to prove that posting on the community tab will get you places you can't get otherwise.