I can't say, living here, that I feel that the problem is solved. I view the needles outside my apartment as evidence to the contrary - though I suppose I'm an ignoramus for thinking that.
Simply strolling through Pioneer Square or most parts of International District paints a significantly different picture. One can dine at a Chinese place on Jackson and look out their window and see junkies peddling stolen goods at the bus stop. The non-enforcement of so-called "petty crime" used to fund drug addictions is egregious and continues to undermine the already little sense of community there is in this city of transients.
What I'm trying to say is that while I appreciate the difference in approach from the traditional one, I do believe that there needs to be an honest discussion about the limits of rehabilitation. More research on the subject, as it relates to Seattle, shows that there are many, many, people who take advantage of these lax policies to abuse the system, hurting others who actually need help.