To be completely honest, sometimes I do believe that a lot of factors lead up to people not getting the bad tastes that I do, anywhere from how someone has a harder draw than me (a harder, faster draw truly lessens the amount of flavor that is delivered in the vapor, both with how there's more air, and how the intake of the vapor doesn't allow the flavor to saturate the person's tongue as much), to how some people are using much darker, heavier tasting liquids across the board (which could probably do a better job of covering up a silica bite than some of my almost flavorless juices), to simple production variations from head to head, to how most here are probably heavier smokers than me (and for much longer), and that with people searching for a throat hit and direct lung inhale, the silica bite or texture may even be a positive for them that helps give a scratchier feel to the throat or benefit nicotine delivery with how the silica particles (if truly present) would naturally be more pronounced with a drier wick (hotter coils + drier wick = more wick feedoff), which, in turn, can cause a person who really enjoys nicotine to become personally attached to the traits and unique nuances and factors of their own device.
With all of that, I'm truly not trying to say that some people would enjoy anything, but with how I do my tests, I always use the cleanest, weakest juices first (juices that might as well be flavorless PG), I don't use nicotine juices for testing, I never inhale the vapor into my lungs during all my testing (just in case there's any sort of contaminants that could trigger my asthma, as bad heads always do), and without a doubt, with my naturally slower draw, the vapor hits my tongue before anything else, and slides off the tongue equally on the exhale. That's where I always taste anything from acrid bitterness or even just more of a wet sock or polyfil type of taste. Since I'm the guy who enjoys vaping entirely for the taste, it's simply a factor that I seem to be really keen on.
However, in all reality, I still think there's more to it than simple preference, as I often say that I've tried juices at the juice bar which tasted fantastic at the juice bar, tried on clearomizers that gave me no wicky tastes, and on those clearomizers, I also had the luck of chocolate and coffee juices tasting perfect, while on the heads of mine that taste wicky or harsh, those same coffee or chocolate juices burn instantly and taste like monkey ..... Pure monkey ..... So I still do think it's the performance of the coils more than anything, that for some odd reason, I've had some very bad luck with coils that are running much hotter than coils usually do in anyone else's set-up. Though I do think there's people out there that do have some numbed tastes (I've vaped with people before, and where one cleaomizer will taste dry and rancid to me, they'll think it tastes clean), I don't think that applies to that many people - simply put, I've experienced the "good vape" that I believe most on this forum are vaping, and I've at least seen where it can exist on many of the simple devices out there.
Just the luck of the draw I guess...