I agree when it comes to streams that are dedicated exclusively to a single user or a single user's content.
However, public streams are owned and used by the whole community, not just by individual users. There's nothing too special about the original creator of a stream. If they start to mismanage a large stream that the community is enjoying, we will swiftly remove them from the stream and promote a different owner. This is because it's not just your content that you are controlling as the owner of the stream, but the content of potentially a huge number of other users. Imgflip fights for all the users :)