Is it time to start calling out bad cyclists?

Another thing I was going to say (but has probably been mentioned a million times already, so sorry about that) but what is it about people putting red lights on the front of their bikes?

Last night I saw two people on my cycle home with no light on the rear but a red light on the front.

I had to do that on Thursday night when I realized I'd forgotten to charge up my front light and decided it was better they see me coming than going.