Is this the site you are talking about?
https://rentry.org/GuideToTheCunnyverse
Because it's 404'd at the moment, at least for me.

I found it archived anyway so I've skimmed through the contents. Besides what has already been said, the only thing I might object to is listing Heyuri under a section titled "Altchans". This may just be splitting hairs, but personally "altchan" strikes me as the kind of label to give a website that has no other reason to exist except as a refuge for the next group of the week having beef with moderation policy on 4chan. Which Heyuri is not, and in fact, never started as such to begin with. "Imageboards" would be a better title imho.

Also late to say this, but it'd probably have been better contacting our admin personally: https://www.heyuri.net/index.php?p=contact
Ultimately it comes down to him to make the final decision when crosslinking sites (though it's nice of you to ask for feedback from our users first). In the meantime, please wait warmly until he wakes from his nap to respond to this thread. Thank you.