Emailed grad coordinator and told them about deadlines for other admits (hinted I wouldn’t stay on the wait list). 2 days later got a reject from MSc Econ, accept from MSc Econ & Philosophy which was my second choice. To be honest, i really liked the other program as well and in some ways could be a blessing in disguise. Be careful about emailing about deadlines, however, if you are not interested in your second choice.
Yes i think emailing brings bad luck-emailed UBC and Toronto and got swift negative replies. If I had waited maybe they would still have a spot after someone dropped off the waiting list.