I didn't say I didn't see it on other websites. I was saying that yours was one of the (relatively small set) of sites that is very badly affected by it.

If I zoom right in on the Apple site I think I can see the tearing you are pointing out. Whereas without any zooming on yours I can straight away see half a dozen obvious bits where it clearly isn't looking how you wanted it to. I come across very very few sites that mobile Safari causes anywhere near that level of problems, so much so that I can't name a single one at the moment that I have noticed having tearing issues.

N.B. this isn't a criticism of your designs in any way, I am impressed with the level of visual design that you managed to wring out of HTML