Delist my profile page from search engines

I can't change my username nor can I remove my profile page from search engines.

Is everyone will be able to see that a certain username created a Keybase account, forever?

Are there no remedies to this?

I find this extemely absurd.

Please respond.

Note: If what I'm asking is not possible, you should at least let the users know of this fact. Cause this is absolutely not cool.

Related: https://github.com/keybase/keybase-issues/issues/2401

Start by reading issue #4179 and its related issue #2401 to understand the existing discussion about username changes and search-engine visibility. Determine whether delisting or profile removal is supported, and document the resulting remedy or limitation for users.

Written by the indexing model from the issue text.