It's ok for one to sell some of their bitcoin.
It's weird if they sell all of it tbh.
Hodlnaughty ya know?
I don't see anything weird in someone selling his/her assets. If they decide to sell part of it or sell everything it's their decision to make and only them know the reason why they choose to sell it off their holdings. The only things that will be weird is if they're selling because of some meaningless reason.