That Ian photographer guy who is complaining about copyright infringement. I explained to him that generally people online will respond better to being asked nicely to remove photos and stuff than being threatened.
Technically, fan usage of copyright imagery has been debated amongst different legal scholars. Some will say that of course it’s illegal. Some will say that of course it isn’t. Most will say that they honestly don’t know.
For example, it is perfectly legal to use things for parodies. Therefore, if you’re using them to go wild on making fun of something, then that’s legal. If it’s for education usage, you also can get away with it.