[WA]

Or you could collect all of your identities in one other central place (say your website or HN) and link to the central place from all other profiles. Because that is exactly the scenario you just mentioned. Having direct links to all other profiles isn't solved by keybase. The only thing it provides is a central place for profile links – and there are obviously other ways to achieve this.

[bloopernova]

Sure, but if you look at how Keybase is verifying the information and how it is presenting that trust to external users, I feel that the value they are providing has increased greatly over a static page listing social network IDs.

Take a look at https://keybase.io/anthonyclarka2/sigchain

You can see a whole bunch of extra crypto is being used to verify the information.