Do people really not use the STL? It's incredibly useful, and portable!
(Sorry for the late reply.) But yes, I find that people who've made careers out of programming in non c++ languages never revisit it when planning a project because they have this weird notion that it "slow" or "poorly implemented." I really don't know where this is comes from but I've heard it from many people i've worked with over the years.
Perhaps we should start with dispelling the old notion that one "shouldn't use" the STL.