Twitter Blue's latest feature is NFT profile pictures.

It's the perfect way to have a verifiable profile picture. Setting up an NFT profile picture also means people can associate your Twitter account with your connected wallet’s public crypto wallet address.

Twitter has made it possible to add descriptions (Alt Text) to images and GIFs. Making them more accessible to people with vision impairments. It will eventually be switched ON by default, but for now we must turn it on.