[tim-kt]

I once built a prototype to a "Goodreads but for classical music", e. g. playing Chopin on a piano. I have thought about doing something like what you are talking about. My concerns are:

1. Moderation: you need to moderate content that people create and moderation is hard. If you don't, the service will be abused.

2. Order: Goodreads has "Librarians" to create some order in the chaos. I think that a meaningful search through "every tokenizable piece of human content" is very non-trivial and would require much work.

3. Monetization: ads are possible. Are they sustainable? I don't know enough of profitability to say something about that. The more specific the type of content is, the more options you have for monetization. For classical music scores my ideas were to make deals with sheet selling companies and make ads for (classical) concerts.

4. Market share: isn't Reddit pretty much a superset of this, minus a built-in rating system?