As far as I can tell, this is a user who reviews games that use Denuvo, and always reviews them as Not Recommended, but will change that review to "Informational" and the review text to "Denuvo removed" when the game removes Denuvo. There may be other circumstances when they'll change it, though, so if you're thinking of actually buying one of these games, it seems wise to click on the game's "Not Recommended" or "Informational" and then scroll down on the store page until it shows you the relevant review. It should be highlighted on the page, though you have to scroll a ways down to see it. There is also a box just after the controller support info that lists 3rd party DRM a game uses, which should be there if the games uses Denuvo.