[Barrin92]

>If a service claims that you can delete/hide whatever data you uploaded on the blockchain, you'd be able to verify it and not only trust them

Given that the the two most important features of a blockchain are decentralization and immutability how would any service ever be able to guarantee me that? That implies they own the blockchain, in which case it's just a slow database.

[antoinec]

Definitely, yes! That was just a theoretical example to say that this kind of claim can be proven wrong very easily and publicly (probably not worded the best way though :))