It's not sarcasm. It's a pro tip which makes your life easier. Also $HOME is a system directory, and it belongs to your operating system (.bashrc and such), al

It's not sarcasm. It's a pro tip which makes your life easier. Also $HOME is a system directory, and it belongs to your operating system (.bashrc and such), also to your DE, also about every program and standard that I am aware of claims it for itself to use (freedesktop and such).