Hybrid Open Access is not cheap. In this example, Ignasi Labastida tweeted that Wolters Kluwer Health have been caught wrongly selling a paper that is clearly Open Access.
Whilst we didn't actually purchase the paper, here's how much this "Open Access" paper costs:-
This is YET ANOTHER instance of a publisher wrongly selling Open Access content. If I were one of the authors of this paper and/or whoever paid the Hybrid APC, I would be unhappy to say the least. Will this EVER STOP ?