Good to know about another interface.
You could beat busy.org by settling for the posting key, like they used to, in their good times.
After all, the posting key is enough for all the actions you stated you get authorized for.
Once you demand the active key, it means you want to take a part of users' author rewards, at least become able to take it, and this is where you get into competition with busy.org and I doubt that you have advantages over busy.org.
Let it be known that I do not use busy.org just because I do not want to share my income with them.
The correct word is indeed income, as opposed to profits, which makes it worse.