Yes, good idea, and a bad idea too.
Good idea because i obtained more than 600 kills and because i am (retarded) i deleted it from error. I am too lazy to do it all again.
Bad idea because this game is full of toxic players that "qualify" the map with 1 star because they have a problem with you or because they are idiots. Imagine if you lower the minimum number of kills many players will take advantage of that to continue deliciously exquisite pizza sauce the lives of people who invest a lot of time to create a map.
Sorry for my english. All credits to Google Translator lol.