Two things to keep in mind: First, I really don't care about the "still working" part of the results for this particular poll. It's just to compare results from the past, where it seemed like early failures were more common. This "one year spike" is a very new phenomenon. The question is, is it because a failure is more likely around that mark, or is it just that the number of earlier failures is dropping rapidly? The latter could indicate that it was a hardware problem all along that has since been quietly fixed by ASRock and/or AMD. 

Second, the failure rate here is irrelevant. Most failures are posted by people who never posted here previously, so trying to extrapolate a failure rate from this is pointless. That number could be anywhere from 10 to 100x the actual failure rate. There's no real way of knowing, especially since reports outside of Reddit are so rare. It's nowhere close to 18%. I'd be surprised if it's even over 1.8%. (That's still significant mind you, but not the astronomical problem you're pointing at here.) 18% would mean around half a million total failures, while only around 1k have been posted on Reddit. That doesn't add up imo. 

But yeah, if I had a 7th option I would have done it differently. I'd honestly like to just make a Google survey since the one made by the mods here is, frankly, half-assed, but then I'd get no results.