If we're going to assume that people agree with the post, then we should also be assuming that people agreed with OP's general tone, which really doesn't read as negative criticism so much as constructive criticism. Again, OP's second post was basically, "Appreciate your response to my feedback, best of luck!". Heck, if we're looking at "people who agree based on upvotes alone" then "This is genius, because so many people have this problem," is the second highest-voted comment.

There's constructive criticism (the Dropbox thread) and unconstructive criticism (the Monkey Island thread).

The tone here is controlled by the mods.

I don't see "hey, your job is super easy" as constructive criticism. I see this as an inability to judge your own knowledge and the efforts of others.

But, yes, the tone is super polite.