Some other direction of thinking to avoid squatting (just thinking, no proposal, relax).
Why should only the first Joe Plumber have the right to claim safe://JoePlumber?
Everybody should be able to claim what he wants.
This network will live for decades at least, some Joe Plumber born in 2168 should be able to get his safe://JoePlumber domain. So let’s do that!
How? We can do this by generating a random extension 
It doesn’t matter then if you are the first or last one who claims the domain. With 3 characters you will have 17.5k possibilities (popular ones like com excluded)
Up to the person or business to share and promote his version. Dead legacy domains will be kept (@JimCollinson happy). New up-to-date domain versions will arise (me happy).
So you will get:
safe://JoePlumber.fea
safe://JoePlumber.amc
safe://JoePlumber.etc
The good thing at least is the easy implementation and the url look quite familiar to existing clearnet urls.
(@neo not so happy)
Downside of course are the phishing domains.
But maybe we can try to think about how to deal with this. Like some ‘official’ lookup site to check if a company NRS-url is the one that belongs to that company.
Or do we have any info about the NRS-url GET requests (and can we exclude requests from scripts)?
If so, we could use that to determine the most popular one and link that NRS-url to the NRS version without the extension (this version should not be used for linking, only address bar).
This might work very well for existing clearnet websites, because they can add their NRS-url on their existing clearnet website and that one has the biggest chance then to become the most popular one.
I don’t know, just some wild thinking.
Other ideas?? Or is it really bad and should we stop thinking in this direction?