I get what you mean, but I don't see it as a platform flaw, but more so a personal problem.

I don't think DTube plans on being a genuine alternative to YouTube in the sense that people will choose to upload such personal parts of their lives, but an alternative for those who create reviews, videogame stuff, animations, etc. and post them here.

In terms of video platforms on the blockchain, they certainly have a long way to go before they can be seen as genuine alternatives to YouTube.

The best thing about blockchains is that they will make you think twice about posting your more personal parts of your life, not only in the event that things go south, but because personal data protection is a genuine issue that most overlook.