Assuming Hanlon's razor it's a Chesterton's fence situation you just see a LED that indicates the camera is on. Assuming they ask the question at all they think it's just to remind you your still streaming/in a meeting. Then someone asks any of the following questions:
Can we use it to indicate additional information?
Can we make it standard with the other LEDs?
Can we dim it so it's more pleasant to use at night or make it a customisable colour?
I'm sure plenty of other questions take you down the same path and you've just destroyed one of the LEDs most useful functions.
What do you mean by Hanlon's razor and Chesterton's fence?
Both are common sayings and easily googleable:
Hanlon's Razor: Don't attribute to malice what can be attributed to stupidity
Chesterton's Fence (worth googling as it's a nice little parable, or it might be a derivation of the parable,can't quite remember): Can boil it down to: if you don't know what something does assume it serves a purpose until you've figured out what purpose it used to serve. In this case I'm implying these people are playing the part of wanting to change the fence without knowing it's purpose.