@xgqt There would be a fair bit of stuff that would break if you made that move. While $HOME is defined in /etc/passwd, there are plenty of dotfiles which don't look to /etc/passwd or $HOME to determine the home directory.
If you choose to move it for reasons, I would also symlink the old location. This would cause anything trying to access the old location to cleanly see the new location. That being said, you would also want to review what is using the old location and clean it up.
@adamconover I commented on the Youtube video after watching it. I think Mastodon is very important to the conversation, but not precisely because it is open-source. Being open-source allows for the ultimate killer feature of Mastodon and the ActivityPub protocol, interoperability.
We have email services which run wildly different frontends and backends, and anyone with an email address can generally communicate with anyone else with an email address.
I agree with your premises that big tech should be broken up/prevented from owning so much of the infrastructure of the Internet; I also agree that the federal government should support, financially, a open, extensible standard for this sort of "town hall" microblogging that Twitter was historically good at providing. That protocol and supporting reference implementations should be open-source and free software for all the reasons you shared in your video.