Not it’s mostly about remote access anywhere without VPN. Forcing your friends and family to use a VPN to access a jellyfin instance securely is not something everyone is willing to do (and might be impossible on some devices).

I bet on more cooling due to shorter layer time in that area. Maybe the fan is blowing harder, check your cooling fan settings, and minimum layer time.

You can create a full color 3d model of the helmet including signatures by using photogrammetry. A phone is enough to do it, there are even apps that do it for free. There are also desktop apps that are open source that can do it. Color 3d printing is also possible with technologies like HP (Multi) Jet fusion. Hobbyist are unlikely to have them but a maker space might.