Earlier quoted context omitted.
Isn't keybase a for-profit startup leveraging advances in cryptography to build yet another social network?
Keybase is not really a social network. It feels much more like a sort PKI with a Slack client on top of it. The focus seems very much on Teams. However they could go into more of a social network direction, the features are basically there.
The downsides are that it has a very cartoony 'silicon valley' type feel which is great for early adopters, but will be a significant barrier to enterprise and government customers who would otherwise be an absolute prime market for easy-to-implement, easy-to-administrate PKI.
It also has a very start-up oriented world view in terms of 'teams'. There would be great call for generic group management. I would love to have some stakeholder management across some projects where we could have a shared space, but also have separate areas for client, supplier and subcontractors. Keybase kind of doesn't quite fit the need for privacy there, although it is so close to being exactly what is needed.
Bringing it back round to the social networking thing though - it feels kind of like it was inspired a lot by social networking. This would be a boon if it were to become a social network. It is absolutely a downside if they're looking for a wider remit.