I personally don't care for the red warning sticker either, but given how accidents tend to happen it's not like it's a bad idea. Stupid things happen to smart people all the time.
If I was the only one shooting the rifle I'd have the selector switch painted red or make sure the lowers I have with the third option on the selector only have the binary trigger installed.
If I was the only one shooting the rifle I'd have the selector switch painted red or make sure the lowers I have with the third option on the selector only have the binary trigger installed.