I assume that just means WPA2 Enterprise? As long as you aren’t using the certificates for anything but authenticating the WiFi network, I don’t think that’s any worse security-wise

wikipedia credits the term to a book from 1992, which predates the fediverse as far as I know

• This page has existed long before GitHub was owned by Microsoft, so that’s not really a meaningful claim
• My reading of the patent stuff is that the licenses that mention them disallow the authors from patenting the software, but I agree that that’s not super clear from the page itself
• Permissive is the established term for such a license, I don’t know what else you’d call it that isn’t offensive

https://choosealicense.com/licenses/ covers the most popular at least