I've lived on the Sunshine Coast for 10 years.
It's nice, too many tourists around this time of year though who don;t know how to drive
Population varies depending on the area you live in, I live in Maroochydore, its right next to Mooloolaba whch is where the nightlife is. Places like Buderim and Bli Bli which are further towards to hinterlands are home to a fair few Retirement villages.
Jobs I can't really comment on I'm still studying so I only have a casual job which was easy enough to find. The situations vacant section in the newspaper is always quite long though.
House prices have shot up recently, can't really comment though because I rent.
The people here are pretty friendly however you get the odd few who are arseholes which is pretty much the case wherever you go.
Fishing is great, the maroochy river is massive and you can hire boats for next to nothing.
Girls are nice
Things to do... take it easy it's pretty much what I believe the sunshine coast is about, my girlfriend lives on the gold coast and hate it, just too busy.
Hope you find this useful