Drugs here are minor compared to my home town in Canada, so it doesn't faze me. I don't see many people wacked out on crack or heroin on Pedro Clisante I know many people who smoke pot, but what is the harm in that. Keep your nose clean and keep to your business.
As far as Encuentro...it's one of my favourite spots around here, never had a problem. I know there are issues but again it's not directed to the general public. Things just seem much quieter than it was 2 years ago.
In general, maybe the drugs are getting worse, but it's not in my face like back home.