SCAM! yes you get all this 'free' space but the idea is that in 30 years they block you from it the charge you per mb of space used AND per month AND for every use after the 'free' period.
you also run the risk of billions of viruses and other things with this type of storage.
this only works if you have a fake name to set it up with that you never use again, if you use it on a diffrent site then they track you down and make you pay for it.
it is a scam and it works like an investment, they set up the storage for everyone, billions of people use it, they keep track of what everyone does, an after 30 years they 'cash it' making all users pay for their 'free time'
cuz after 30 years how many 'important' things might end up their that people will have to go back for.
I warn all users to clear out long before the 30 years is up,but you will probably forget and get scamed, so have fun.