He doesn't, he has HID fogs and LED sidelights, at least that's the impression I get after reading the whole thread.
LED's aren't bright enough (yet) to act as main illumination.
Fog lights are about beam pattern: low and wide, and straight ahead or slightly down. The idea is to prevent the backscatter from blinding you (and other road users). Keeping the light low does this as far as is possible. Wide is also important, to light up the edges of the road and keep you on the straight and narrow. In fog, even with the best fog lights, you can't go fast safely, it isn't possible to see far enough; the best fogs will give you less range than dipped beams and with less clarity. In thick fog you'll be crawling; seeing the edge of the road is very important in such situations
Without fog lights you'd be going nowhere.
http://www.autoanything.com/lights/index.aspx
For this reason, the "blinding other road users" complaint cannot apply to proper foglights, the beam pattern doesn't allow it. It used to be popular among the wannabe rally driver types to fit auxiliary <i>Driving Lights</i>, which are main beam lights for better distance vision (and have to be wired in parallel with the main beams, going out when you dip). Modern headlamp design and bulb technology have made these redundant other than for retro-posing.
HID lamps's main advantage, for the manufacturer, is that they don't have a filament that can break or burn out, so never need replacing and the doa rate at the factory should be low. The light source, the gas discharge arc, is smaller than a filament and allows the headlamp designer more freedom to design small or odd-shaped headlights that still meet the legal requirements about glare and beam pattern. They also put out more illumination for less power consumed, allowing alternators to be downsized. The "near-daylight"aspect is pure marketing.
This makes converting filament-bulb headlights by replacing the bulb with a HID source problematic. The bright bit in the HID bulb is a different size and shape, so even if the replacement manages to put it in the same location as the filament, the reflector design isn't right and the beam pattern will be affected.
For foglights, the colour doesn't matter. It used to be thought that yellow was the best colour, but see this explanation (a bit technical).
http://www.newton.dep.anl.gov/askasci/phy99/phy99xx4.htm
So, what's the reason that most people dislike the use of "fog lights" as extra sidelights? It isn't glare, because most of the time fogs don't glare anyway. I think it's simple irritation, which shouldn't be dismissed as trivial. Driving with extra lights on is looking cool, showing off, posing. Lots of people find posers to be irritating. Driving is stressful enough to cause road rage for some, without any extra reasons.
Showing off is a low-level irritation that some can ignore and others can't. Sometimes they secretly wish they were brave enough to pose themselves. Some do pose but don't like to see others doing it. Posers don't care how irritated others feel. Some like to annoy other drivers. Some are afraid that if they didn't show off, nobody would notice them at all.
I will now put on the Nomex overalls, retreat to the bunker and wait for the flames. But you all know it's true.
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