Yuck —-^ I have the same issue, and I’ve seen so many pictures like it on other forums. So that as much as I do prefer black or at least dark colors, I went with “space gray” for s11 even though it’s not even that dark at all, since it seems too risky to roll the dice regarding whether I’ll be one of the lucky majority or the small but seemingly not so small minority that gets this crappy issue happen AGAIN.
May I ask when you say “replaced twice by Apple” already… how did that work? i.e. they acknowledged it being their doing and replaced it for you for free or for a fee, or ___?___. … because I did read reports here on MR and elsewhere that people have got theirs fixed/replaced, but those reports are quite rare compared to the more common ones, like my own experience at two different Apple stores, of being rejected flat-out by the “cosmetic” word which they use to just shut me down no matter how i may politely try to explain the issue and request some assistance or their manager, etc.
I made a thread / poll to try to gauge how frequent this is a couple months ago,
here, it seems like about 20+ have no problem at all and only a few do. which of course is not a huge data set but… eh. it is a bummer to keep reading reports of this happening. so if you want to be safe, avoid the jet black.
what makes it so bad to me is how Apple employees claim it’s cosmetic damage and that even if I had Apple Care, they wouldn’t fix it, no matter what. so basically that means I have 14 days to return it, or I’m stuck with it despite the “1 year warranty” for other issues, it really makes you feel handcuffed, trapped when they won’t acknowledge such an issue and meanwhile there are tons of posts about it online, and all of them or most of them seem to track together about it happening about 6 months after purchase. :-/