Kastelo update request ([email protected] access)

Requesting an update of this proposal from MSVB https://forum.getmonero.org/9/work-in-progress/90126/advancing-monero-hardware-wallet

Also i am making a complaint about the usage/access of a getmonero.org email handle that should only be used for official purposes.

Used in a leaflet distributed at Monerokon

In this Reddit thread, the getmonero.org email handle was used for making a sale. (cropped screenshot below)

A meta-issue suggesting the depreciation of the email address https://github.com/monero-project/meta/issues/879