Now parts of the pokeweed plant are edible at certain times of the year, and/or with certain preparations (berries included), but the article made no note of this. The article itself kept referring to some other sort of berry, and gave no warnings.
Thankfully the article allowed comments, and many different people chimed in with the correct identification, warnings, and so on. It would seem at some later point an edit was added to the article, although it simply said that the picture might not be the berries named, and not much else...
While it seems the article wasn't meant to be a real guide to identification, this is why it's very important to seek out proper guides, and to use multiple sources and pictures.