For example I heard around a few corners that people didn't feel unconfortable with JeanHeyd as a keynote speaker but with topic of the keynote speech. Mainly because it would frame certain possible future rust features as if they are decided one and it's just a question of time and how until they land. But that many people disagree and think this features should never land in rust due to the complexity they impose and due to how they did play out in other languages.
The problem is the "around a few corners" part, I have no idea if that's true or made up excuses.
EDIT: Maybe I should just go back on twitter and go through JeanHeyd's posts ...
EDIT EDIT: The missing official statement is very telling by itself.
EDIT: https://blog.rust-lang.org/2023/05/29/RustConf.html me blind