Examples of articles using ADL as a source: this this this and this
Check my explanation and in particular the link I gave, it explains a little bit more. The OP article is just a little confused about how Wikipedia works. Actually, down near the bottom, they get a lot bit closer to how it works:
By deeming the ADL “generally unreliable,” Wikipedia is telling users that “the source should normally not be used, and it should never be used for information about a living person.” Wikipedia is not poised ban the ADL outright; enough editors have argued that some aspects of the ADL’s work, such as its database of hate symbols, should still be considered an acceptable source.
That's actually a lot closer to what happened than is the headline or the early part of the article.
Legend of Kage for NES was an awesome minimalistic beautiful game and I’ve never met anyone else who thinks so