To each his own. I have LED's on my 2006 Warrior and get nothing but compliments from numerous other riders.
It's just another way we can customize our bikes and I don't get the hate.
Let me see if I can explain the phenomenon:
First off, it's not hate for the owner, just the mod. You would get the same response if you put a bunch of chrome accessories on your FJR. This is because sport touring type bikes are the antithesis of cruiser type bikes. On cruisers it is SOP to put a bunch of aestheticly pleasing baubles on your bike that have no real functionality.
You can say that these LEDS increase your night-time conspicuousness, but I don't think many folks are buying that. There are certainly much more effective ways to accomplish that goal, like a few square feet of retro-reflective decals, but those certainly don't have the same bling factor.
So that's the reason for the negative comments: FJR Riders are the anti-pirates. Bling just ain't our thing.