Some people completed their cloaks two weeks ago. Some people in my guild are still at 2 runestones. We all started within 1-2 weeks of each other. I'm at 7. This is just one of the worst concepts ever, not to mention the whole "everyone gets a legendary..something." concept is something I also disagree with.
Either way, discuss your drop rate horror stories.
tl;dr I'm fucking mad that some people have their cloaks and I don't.