Nay for now. While there's a few communities on lemmygrad that I want to see like Late Stage Capitalism, lemmygrad has been defederated since day one, and all of us (should) have known this when we joined, so there's no hurry to refederate with them.

The real solution is for Lemmy to let users block instances from their own view, then all the defederation discussions will be moot. When that happens, we should do as you proposed - federate as much as permitted by law.