Oh, I mentioned wanton macros as the enemies of readability. I forgot the other BIG one I had in Common Lisp: dynamic scope. Which you CAN do in Clojure, but I've only known two use cases. Dynamic scope is one of those ideas that was almost never good...
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RT @deech
Summing up 20+ years of syntax debates: I want to write lisp but I don't want to read lisp
https://twitter.com/deech/status/1529241611540041729