I would say non believer. I doubt people who don't see your bike would most likely not see your high viz either even with neon signs and fireworks. I'm sure others will swear by it and have "OMG I would be dead without hi viz" stories. IMO opinion hi viz is equal to revving your engine at a stop light. But what do I know, if you feel better wearing it and it gets you out on 2 wheels then go for it.
2009 BMW F800GS
2009 Yamaha FZ-1 Retro (for sale)
2012 KTM 500 EXC
2005 BMW R1200RT
Is that it?