Creating oracles that can verify social media accounts on-chain is possible.
Any account that wishes to be tracked by the twitter oracle can publish a proof of ownership of a .eth name on their twitter. Oracles can now attest to this proof and allow the owner of alice.eth to register ownership any twitter account they control onto an ENS record. So now you can prove that the controller of an ENS name also controls a twitter account at a point in time. The oracle can also provide the blockchain with dynamic information about these accounts such as number of followers.
Use case 1:
We can create an on-boarding incentive for twitter accounts with over 1 million followers, allowing them to claim ENS from the treasury if they register a .eth name with an Ethereum account and set the primary name of that account to their name.
This allows anybody with 1 million followers on Twitter to register their web3 name on ENS without bearing the high cost of gas.
Repeat for Instagram, Twitch, Youtube, TikTok, etc.
Use case 2:
ENS can now provide cross platform name to ID verification. Instead of depending on twitter to allow you to have a blue check mark on your profile, you can mint your own by linking your account to your .eth name and your .eth name to any other proof of ID.