When installing gentoo using ssh from a remote machine, if the connection for some reason goes down, one can lost a lot of work. I would suggest to put in the handbook, where the possibility to use ssh for remote installation is described, a mention of the possible problems generated by lost connections and how to solve it using screen. Reproducible: Always Steps to Reproduce: 1. 2. 3.
See http://www.gentoo.org/doc/en/gentoo-x86-tipsntricks.xml#leave_terminal