The best feature of uloz was searching function (like in emule) so it was possible to fill requests without talking about it (as long as your file had it's real name - for example if it was Pippi it was named so)
Update: Today I checked files I have previously uploaded to uloz and discovered thay all that exceeded 50 gb limit for free users has been deleted (to be honest they tolerated it quite a long time)
Another update: I discovered PM from 20.12.2023 that all such files has been moved to trash and will be deleted after 30 days