Yeah, I've had similar experiences to yours, nordic ski racing on a team all throughout college. We'd all get coughs the first few cold days, but that was it. We would avoid doing interval workouts if it was below 0° F though.
Agreed. I would wager that in any sport where technique is important/difficult (swimming, nordic skiing, and to a lesser extent running), efficiency will improve over time, even for elite athletes.
The previous poster was saying that in response to storming the US Capitol building, Twitter can either: 1) ignore it, 2) respond to this specific instance (right wing extremism), or 3) respond to all inappropriate uses of their platform (which would include left wing extremism).