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First of all, I agree with everyone else but let me answer the question you asked. Dofollow blogs often set themselves as dofollow to get links from being listed on dofollow blog lists, like the one you must've found. Once they get listed, they change back to nofollow so they don't leak their juice. So after they were added to the list they simply changed their blog back. That would be my guess (without looking at the actual link.) And no, there's no real benefit to doing blog comments simply for the sake of SEO. There are LOTS of reasons to leave comments though, so just do it naturally.

Hi, i need help. Spam score is currently 63%, I did this (you successfully uploaded a disavow links file (dosavow links.txt) containing 46 domains and 315 URLs.) How much should I wait to change? URL: https://www.neueabnehmen.de/