I’m on 2 DO WLs no acceptances. I’ve been pretty communicative with the schools over the last few months and I feel like they probably know my name by now lol (they encouraged questions and contacting them every so often). Both admissions departments have been so beyond pleasant which makes this process a little bit smoother. I sent one of the schools a LOI and they responded with something along the lines of “we really appreciate you solidifying your interest just try to stay patient and hang in there”. Excuse my neuroticism and reading into every word, but can this be seen as a good sign?