Individual privacy cannot be infringed. The measures against corporations are a good idea. The rest are only good for official accounts so public officials cannot be impersonated. For private individuals, accountability only needs to happen when they enact violence.
A politician from one of the modern countries that still imprisons people for lese-majesty wants to end social media anonymity? Sounds like a great idea!
If you offend the royal family you can get punished. There was a case some year back about a rapper that sought asylum in the Netherlands or Belgium I think, as he risked imprisonment in Spain due to his song lyrics criticizing the royal family. It's crazy to me that one could seek asylum fron an EU country in a different EU country