It is a shame. I was trying to help OP out, but I think they might have blocked me individually, maybe through a mass ban of individuals in a thread they found on lemmygrad. As for the instances that have already blocked us, it's unlikely they will ever federate with us again.
Perhaps the devs could implement a "soft" ban as an alternative to outright removal from federation. Censoring a comment or thread created by a user from the targeted instance with a confirmation click to view. I'm sure a lot of these QoL features will be added when the devs get through the enormous backlog, which has only been growing larger due to the influx of new users.