Don, it wasn't so much the idea of all of the humanoid races being descended from lonely aliens that bothered me(though I still hate it, heh. And it doesn't explain, to me at least, why a human could breed with a Klingon, but not with a salamander, or even a gorilla {or maybe we CAN, and that explains me? :=D}), but the fact that the writers dropped this HUGE bomb in the laps of all the humanoid races, and they just shrugged.

Information like that would have a huge effect on people. Scientific theories hundreds of years old would be thrown out the window. Pretty much every remaining religion with a creation story would be ruined. New religions or cults devoted to the 'Lonely Aliens' would probably spring up. Everything, the way people look at themselves and each other-changed. But, no, nothing. What was learned in "The Chase" was never mentioned in following episodes or series. Could have been interesting, really... Like I said, aaargh. :)

---Lepus Rex