Keybase has a spam account problem. Options to block, report?

Many people have discussed the issues with spam, in the form of any keybase user being able to message any other user - whether they follow them or not.

But what can we do about fake users?

Example here: https://keybase.io/titania99

That is a photograph of the Indonesian actress Ida Ayu Kade Devie , and obviously not "Titiania" (here's the photo session it came from in case you are curious https://www.kapanlagi.com/ida-ayu-kadek-devi/foto/foto-rez-ida-ayu-kadek-devi-038.html )

Now, I am not a fan of having fake users follow me, but I can't find a way to block this, or report the user. I do however find that I can "unblock". Interestingly backwards.

Am I missing something or is there no way of reporting obvious fake accounts?

Start by reviewing the discussion and the example Keybase profile at https://keybase.io/titania99, then trace any existing block and unblock flows in the client or website. The issue does not name files, tests, or entry points; done would require a settled, implementable scope for reporting or blocking fake accounts.

Written by the indexing model from the issue text.