I wasn't "into" flashlights until I came here so most lights I have I heard about them here first I suppose.
I was given a Surefire 6P before I ever came here. I was appreciative of the gift but wasn't particularly impressed by the light other than at the time it seemed bright.
Because of that I've never purchased any Surefire's. They seemed expensive and behind the times so the boards attraction to Surefire never had that impact on me.
I did get (and like) the ITP A3 extended after seeing all the reviews on here. I wanted an infinitely variable light and couldn't find any until I did a search on here. At the time bought it (Proton Pro) it was several years after they were introduced and didn't seem to be all that popular (at the time I bought it).
I recently bought 2 Zebralights after resisting for a long time...too much fanboy and not enough analysis on here (IMO) but I wouldn't have heard of them were it not for CPF.
I've done a little research on CPF regarding headlamps and own a few but I can't say (other than the Zebralights) that any were massively popular here...maybe the PT EOS.
I've used CPF more for knowledge rather than for recommendations on specific lights.
I just bought some Eneloops (heard about them only here) and a smart charger but not the $50 model recommended here (I forget the name).
I don't even own a Solarforce (have never owned a Maglight) and don't have a Quark or any AW batteries
I have a XM-L drop-in but still prefer XP-G. Other than a dive light I don't own any 2 18650 lights or any lights with more than one battery for that matter.
I can about beam quality (however I define it) more than CPF seems to. I did learn about forward clickies here and if I have to have a clickie forward is the direction I prefer