Some are even 3-pin, where I believe the third pin is for power delivery for active noise cancellation. Then there's a level on top of that with metallic contacts between the pins, no idea what those are used for.

A surge in cases is no longer an emergency as in 2020. Is using an emergency system to basically broadcast regular news, causing some to turn off the alerts entirely, in a locality where storms and tsunamis matter, not counter to the point of having an emergency system? The broadcasts weren't even large numbers, more like "there were 8 cases in your neighbourhood yesterday" and "here is your nearest vaccination center", as 2 separate alerts.

I was just in Korea for a few weeks, I hate how emergency mobile alert broadcasts were abused daily or every few hours just to tell people how many local cases there were.