Opera Mini does the 'adjusting the content to fit the device' thing too. You'd think that Opera would've been sued for this if it was problematic in any way. Of course, Opera is a lot poorer than Amazon, so they're a less tempting target for a troll seeking to beat the money out of them with a lawyer-club.
(If Opera _has_ been sued for this, no doubt some knowledgeable person will link to it for us.)
DOH! I just mouseover'd the 'report' button, and I see that it included trollishness in there..
Still, the option not to see troll-comment-trees would still be nice.
... having said that, I bet I'll find that option somewhere when I look...