Again i have to remind people who donated in the past, DONT PANIC.
Users who donated ten bucks a year ago are sure not worth the time and work it takes to trace back Paypal transactions. Also UK/NL has to work closely with other foreign authorities, which slows things down and complicates it further.
Because never any user has received upload credit or such for donations received, we can safely say that at this time, people who have donated can feel safe. Media reports saying that people were forced to donate to be able to download or stay on the site are false. Users who have been on the site know better.