Researchers from several institutes worldwide recently developed Quarks, a new, decentralized messaging network based on blockchain technology. Their proposed system could overcome the limitations of most commonly used messaging platforms, allowing users to retain control over their personal data and other information they share online.
Personally I wouldn’t be replacing any of that with any cool woo woo blockchain tech; my point was more that the infrastructure used to support the status quo could benefit from some of the features common to DLTs