I already did it a rate for a rate. I doesn’t think that really works, the rates are lower, I think. And globally , I am not a big fan of that. JollyJoe is right: asking for feedbacks (on discord) without giving something in return is better, but you can play the games after if you think they worth it. And when you comment others, they can see a mini-picture of your game, itch.io is already asking for you (with the picture).