Yes, it's a very interesting topic to have brought up and I will think it's going to provoke some discussion amongst scientists for quite some time.
The atmospheric chemists and the geologists are going to be pouring over the data and the theory and going through old assumptions with a fine tooth comb.
With Titan though, things are going to be moving a darn side slower than they would on Earth because of the cold temps. The main driving forces for creating the hydrocarbons on Titan would be production of the methane/ethane and such from geological processes and the hydrocarbons through photodissociation of methane and such at altitude by UV light and then recombination through chemical reactions into long and short chain hydrocarbons. However, most of these hydrocarbons would have to sink rather quickly because the UV would also break them up as well if they remained exposed to the light for too long. Much of that orange haze in Titan's atmosphere would be organics and busted up methane, ethane and such. Basically a whole lot of smog
