I submitted a proposed edit to this question but one of the reviewers said that my edit 'deviates from the original intent of the post. Even edits that make drastic changes should strive to preserve the goals of the post's owner.' This is yet pending approval but, I'm having a hard time trying to see how my edit deviates from the original intent of the post. Here is my edit (right side) compared to the original answer (left side).
I consulted the help center and in one of the reasons given on when to edit, it is stated that you can edit 'To correct minor mistakes or add updates as the post ages,' which is what I just did. Since at the time the answer was posted no information regarding how Reiner, Annie and Bertholt acquired titan shifter abilities or where this came from was revealed yet and since this information is now available at later chapters, I just revised that part to state how they acquired titan shifter abilities and where this came from.
Also, the question was asking how titans became humans so it is only natural to include the part on how Ymir was the first titan, how her powers were eventually divided and passed down until the time the events in the manga happened. As of now, I cannot see how this deviates the original intent of the post because as far as I know, the post's intent was to provide information on how humans became titans, and my proposed edit just adds additional facts regarding the subject and links to additional resources about the Nine Titans and the like.
I'm not angry that my edit was rejected by a reviewer (some of my edits were rejected before and I realized my mistakes; this is just pending so this may still be approved). I just want to understand why the reviewer was able to give this comment so that I'll be able to improve future edits I'm going to make :)
I'm still as confused as I was when I first posted this question. 'This edit does not make the post even a little bit easier to read, easier to find, more accurate or more accessible. Changes are either completely superfluous or actively harm readability.' How does this not make it 'easier to read' when I just corrected minor grammatical mistakes? How does it not make it easier to find or accessible? How does it not make it 'more accurate' when Makarov's name was corrected from the wrongly-spelled 'Makorav'? How is it superfluous when the point of editing posts is to correct any mistakes made, if there are any? Finally, how does it even 'harm readability' when what a person is doing is just correcting grammar and wrong spellings?