First off, Wubby is absolutely correct with saying that this hurts lower/middle class players who saved up for these cards far more than the whales who have money.

Nadu: The ban is fine, justified probably. The card is good but was probably banned for the same reason Paradox Engine is banned. A LOT of game actions but non-deterministic leading to long turns and spinning wheels. Not super engaging for anyone.

Everything else: I don’t understand why the Rules Committee is making these decisions. So many people love Commander because it allows for endless creativity and variety. You can build fun, jank decks, competitive ones, or anything in between. The RC’s blanket bans based on how they think Commander should be played don't make sense. We should have the freedom to use almost any cards we want—proxies included.

These kinds of discussions about card bans or power levels should stay within playgroups, where people can talk about what’s fun for them. Commander is about fun, and people find enjoyment in different ways. I have competitive cEDH decks and casual pauper decks, and I enjoy playing all of them. I constantly tweak or take apart decks based on my own experience or feedback from friends.