In China, Bill Gates encourages the world to build a better toilet

The last time I read about this technology there was a concern that there would be lasting smell from the toilet due to how it cleans itself (improperly). Has the issue been fixed?

I believe you also need to remove a poop-filled/stained component from it every few months, but this would probably be just a minor inconvenience for people who haven't even owned a modern toilet before.

I find it insulting when billionaire entrepreneurs make their fortunes with American resources using the power and reach of American markets and then spend it on humanitarian philanthropy in hostile, Communist third world countries.