I don't think he has bad intentions but he does seem to have a big ego and making claims that all diseases are the same seems kind of ridiculous. In parisitology itself there are tons of species of parasites. I'm not a scientist myself but some of their claims don't really seem sound. Also saying 'everything' can be cured by fenbendazole doesn't seem very logical either. Maybe for Steve it worked good but that doesn't mean that's the same for everyone.