If someone makes a copyright claim Steam may be obligated to remove it until the developer makes a counter claim. It doesn't matter what the TOS says. For exa

If someone makes a copyright claim Steam may be obligated to remove it until the developer makes a counter claim. It doesn't matter what the TOS says. For example, if I post the Lord of the Rings novels on the Steam forum even if the steam forum TOS says Valve owns the post, they don't really own the post because I never had the legal ownship of Lord of the Rings and could never legally agree to that on behalf of the Tolkien estate. So basically no TOS is going to resolve the factual question of who owns copyright in a post to the steam forum since the poster may not have had the legal authority to agree to the TOS. Also Valve only has a business interest in the rights to display the posts to the steam forum, they have no business interest in owning the posts, so it would be unreasonable and greedy for them to go further than a license to display the posts. I have not read the TOS but I wouldn't be surprised if Valve's TOS terms were reasonable since they have a good reputation with the gaming community.