I don’t know. The internet had hundreds of file sharing sites at one point. They all suffered fates similar to the epic MegaUpload although with not as colorful founders as Kim DotCom.
I don’t see how having them again would be different than last time?
Mediafire is still alive and I think it's the last hold out from the "big" file sharing websites of the mid/late 2000s. Though honestly I don't miss the download limits, timers and adf ly spam that came with them. Common cloud storage (gdrive, dropbox) are much easier to use and share files from, although they require you to be logged in. Send seems to be the best of both world though.