First we need to identify a problem.
Is it actually true that people who want to make their game materials available for public consumption have a problem doing so?
I don't think that's the case. I think that if people want to make their content publicly accessible, they have more options right now than they ever have, whether it be online fora dedicated to that particular game, various social media platforms which accept longform content (farewell Google+, we are sad to see you go), a multitude of free blogging sites, many of which are highly customizable for personalization purposes, a pile of paid blog sites which are also extremely easy to maintain, tons of distributed storage solutions (Dropbox, Google Drive), and no shortage of places to talk about any or all of the above.
Including the steem blockchain.
So I don't think the real problem is that people don't have the ability to share their stuff publicly.
You might be able to make the argument that there is no sufficiently widely adopted micropayment system where interested individuals can reward others for having shared that content – and I would agree with you on that particular point, but I think a solution akin to Flattr or the BAT which doesn't require an individual to be on a particular platform in order to receive the rewards allocated by their consumers would be a far superior methodology to locking all creators into a single platform.
Now, if the problem is "people are locking away content that I want to see," that's a different problem. That's an issue of them making a conscious decision that you would prefer to override, and that's not a path I would be down for. Call me crazy.
Most game folk that I associate with outside of the industry are fiercely protective of the privacy of what they do. Some of them because they have an overblown belief in the idea that other people are constantly looking to steal their ideas, some of them because they are embarrassed about their past time or the kind of content they engage with, some of them just because they don't consider it anybody else's damn business. I'd say they have the right to any of those positions, although I ruthlessly mock the first.
The glass fishbowl is not necessarily a good place for development. It's definitely not the best place for casual individuals to necessarily pursue their entertainment. I am much more comfortable with the burden of discovery and reward falling on those interested in discovery and reward and far less so on those who are doing the creating.