The issues is getting your audience to follow. That's another website, another app, another feed to track. Ecosystems and walled-gardens work, because they allo

The issues is getting your audience to follow. That's another website, another app, another feed to track. Ecosystems and walled-gardens work, because they allow easy interoperability with other products and services already offered. Starting a competitor against something like that tends to not get enough marketshare. This isn't saying that someone shouldn't try - it's just tough to do.