Sad about Riley’s.  I lived in Greenhills when the original Riley’s opened in the shopping center there and it was always a reliable good meal.  After their move to Springdale, it became one of my mother’s favorite restaurants and a place the whole family could go to when we all came back to town.  She was disappointed that it changed to more of a sports bar, but she never got to try it.

Are these “Walt’s BBQ” locations in any way related to the Walt’s Hitching Post that was in NKy for many years?

No.

Does anything decent ever survive in that Greenhills strip mall?