Leaving a lithium battery charging for a long time, even when it’s already 100% can degrade it.
Most devices have failsafes against this, but I still always try to not leave a device charging if its already mostly full… perhaps it’s just me being paranoid, but what I rather do is set up rules so that the phone automatically goes into airplane/battery saving mode at night.
Yep, this is akin to: “Depressed? Just say no.” “Depressive thoughts cannot legally enter your mind if you don’t have them.”
People don’t realize that overfeeding is not the real cause of the problem, but rather a consequence.