Either you agree that Opera implemented standards as strictly as possible (really the only way when you your own rendering engine with such a small market share) while aiming for compatibility at the same time (which is implemented by copying certain quirks--and O isn't the only one that does that--as well as having a large database of popular sites that are fixed with bits of custom JS), or you disagree that Opera aimed and successfully did implement web standards (which is provably false).
Saying "possibly" makes it sound like you don't really know. Did you consider, while typing that remark about the downvotes (bad form, and doesn't add anything to the discussion, except for polarizing it even more), that it might actually be caused by your self-admitted lack of knowledge on the subject?
Sure thing, those people may be "Opera devotees", because those are the people that know what they're talking about maybe?
You claim that top post was "not actually an anti-Opera comment". What about your remark that "They'll continue to be the browser that nobody cares about"? That was you baiting all of those European and Russian Opera users, that you may or may not have noticed are also here on HN. If you had said "the browser nobody in the US actually cares about" then yes, I could not have disagreed. But this general claim is a tad ignorant, the global 1.3% market share is not at all geographically evenly spread, and goes up to 47% in certain countries. That's a long shot from saying nobody cares about it.
(BTW I may be an Opera devotee--a little bit less than I was a few years ago though--but I'm not downvoting you)