We will be announcing the criteria soon. No, it is not as simple as just being downloaded 100 times. The 100 times mark just means that we will look at it then and see if it is of a high enough quality.
Right now there are no non-BrillKids premium files yet, so continue downloading for free!
You will only have to pay points for premium files, so if it's not marked as such, you won't have to. in any case, it will ask you to confirm the deduction of points before it actually deducts.