, STL wrote

It's very useful to me to see what people are interested in hearing about - thanks for starting this.

So does that mean you have forgotten or lost the requests in previous video threads / comments?
I recall you requesting for what users are interested in and several responded.
Perhaps you should consider them before accepting new requests ?
You really should go through the comments of the videos, there are some good requests there. 

On advanced stl topics:
Not sure how advanced it would be but i'm curious of how you would implement a natural string sort function.

I've seen many versions and i'm curious of how somebody like you with good knowledge-base of the STL and how to use it correctly would implement such a function.

Is that too specific of a request ?