In my defense, I use .ml because it tends to have the best stability/uptime. I think I was using .world before, and it was down for like 3 days straight at one point so I stopped using it and started using .ml more.
With that said, I think blocking entire instances is kind of extreme unless it's very warranted. With that said, I appreciate the ability to move between instances as necessary, or even host your own. That's one way Lemmy will always be better than alternatives like Reddit.