[csytan]

Are there any disadvantages to choosing developer mode?

[swixmix]

It's no longer a safe and supported system. (Opposite of what I really want.)

Also the nag screen on reboot is alarmingly bright and, i think, just gives directions to disable developer mode.

Always backup your files if you use developer mode.

Always backup your files if you use the linux system.

Always backup your files.