After the recent issues with the cyberlockers after Megaupload owner Kim Dotcom being raided and arrested. Filehosting services or Cyberlockers in general did start to move out or stop their services like Fileserve and Filesonic. None of the filehosting services run a charity organization. The hardware required to host the material uploaded by the clients on the cyberlockers is pretty costly.
If a user wants to backup a significant chuck of his data on the servers they would end up using nearly an average of 30-50$ worth of HDD space on the servers. Cyberlockers do provide free storage for users who have a small storage requirement, but it you need lot or almost unilimited storage, I recommend you RyuShare premium account.
Cyberlockers do provide download limitations for free users so they buy the premium subscriptions to simultaneously download various files at the same time. The major source of earning for cyberlockers is via premiums or advertisements displayed all along the site. As most of the users nowadays have ad blocks installed on their browsers so most of the advertisements aren’t shown. Most of the cyberlockers after the Megaupload issue have stopped providing affiliate solutions along with file linking capabilities for sharing your file making themselves a personal storage system where you can upload or backup your content and only you can download the content back to your pc via the logins provided.
But still if you find many Cyberlockers do have Affiliate programs to pay the uploaders who then get them premium downloaders, Being a Cyberlocker is a pretty expensive business. Simple theory is that if a uploader doesn’t upload content their won’t be any downloader to buy premiums to download the content. And with the recent copyright issues being a Cyberlocker is not that much profitable.