I suspect that there is a lot of confusion around this issue because "burning taste" might actually mean different things to different people - it's nobody's fault, but writing about smell is like painting about taste.
There's the taste that tells you your cart is getting dry, I'd call it a hot plastic taste. I don't think this is much different across e-cig models. I think this would be widely accepted as normal.
There's an escalation of the first taste, which tends to negate the
juice flavor, more unpleasant than the first. I call it a soapy taste. This is what you get when there are polyfill fibers stuck to the atomizer bridge and are heating up as you vape. Still pretty standard, and easily corrected - remove the fibers and puff right through it.
Then there's the apparently controversial burning, plastic, chemical spill, electrical fire taste that comes from letting a 510 atomizer get too dry. This one is unmistakable, horrific rather than merely unpleasant, and will sear the lungs if allowed to.
I'm assuming the poll is about this last one... is it?
I'm also more than a little concerned that a new user might be scared away from trying the 510 due to the volume of complaints about this taste, when some of the volume may be attributed to something else entirely that is completely normal, and when most of the rest can be avoided by keeping the atomizer soaked well enough in
juice to avoid burning off the inner wick.
I'm not saying that this isn't a problem, and I'm not saying that it's not perfectly understandable to find oneself experiencing what I would call the burning taste... I guess what I am saying is, be aware that there could be multiple very different symptoms that could be getting lumped together here, and that the symptom that I believe is the worst can easily be avoided with a little care.
There are anecdotes on both sides as to whether an atomizer that has experienced the burning taste can be recovered. But best not to let it get to that point - if you lose one or two before you know how to avoid it, chalk it up to experience, and go enjoy your 510.
Tim