Please add a new section under "for Users" in https://fedecan.ca/en/guide/threadiverse/overview about the lemmy.ca sitewide blocked instances and reasons. Don't need to list the reason for every single blocked instance but can call out the more noteworthy ones that had a discussion.
Why I'm asking for this is I was trying to subscribe to some communities from lemmit.online but was getting a terse and confusing error. It took a bit of digging to see it was intentionally blocked from lemmy.ca and the reason why.

Here's a suggested starting point for contents:
Sitewide Blocked Instances
lemmy.ca blocks instances at a sitewide basis due to them having inappropriate content. The list of blocked instances can be viewed at:
https://lemmy.ca/instances
Discussion about blocked instances of note:
save