lamka02sk415734dI mean, it is polite to say "Hello", but others definitely shouldn't respond to it in a similar fashion. The "Can you hear me" phrase is cringe, I agree on that.
WeAreMany201334dI don't agree. Mic checks are good if they are done fast. Nothing worse than talking about something and realize someone can't hear you.
Do. Not. Make. Me. Repeat. Myself.
Also, you know it's not always working... you're not fooling me.
ThorE333dJust 2 days ago, the mic check was essential, turned out an out of org couldn't speak, he had to call in. For something that we've had a while to perfect, it's still notoriously broken.
Heck, I have to remember to check that the right input is selected, because apparently 2 mics is a novel idea in 2020.