[Koir]

KyleGoetz's reaction shows exactly why this style of editing is confusing.

The red text is Yuri's original words, with girigiri's corrections in green text. So yes, the red text does demonstrate writing by a non-English speaker...because that is exactly what it is.

Red text: Original post by Yuri Tokoro.
Green additional text: Revisions added by girigiri to correct red text.

KyleGoetz, it may have been useful to read the original post on the previous page to crossreference whose words the coloured text was, instead of jumping to conclusions. Regardless, girigiri has been banned from the forums for a certain length of time apparently due to conflicts with forum members who possess more accurate knowledge of the Japanese language.

tl;dr: Kyle, you're right in a way, but not for the reasons you state.