What are the odds that an Apple user finds that site attractive? I come from the linux world, so fine by me, but I'm no dummy, this site looks like it's going to tell me it runs better in a modern browser like IE6.

I don't think there is such a big discrepancy between apple and non apple users.

Completely agree, I'm a brew user myself but find the site of MacPorts rather clean and modern. It's responsive and doesn't feel abandoned at all (particularly https://ports.macports.org which support Dark mode). Plus, using brew, I never go to the website so I don't think this is really important.