I had a bounty on this question: What are the new units in Heart of the Swarm? which was awarded during the AnswerSwarm period.
Doesn't look like I have the 'My Precioussss' achievement. Any admins have access to check?
As Raven Dreamer points out, only posts made after the start of the AnswerSwarm promo are eligible. From the rules:
Only questions tagged starcraft-2 and answers to those questions that were posted during the contest count. Closed and/or deleted questions are disqualified from consideration.
Sorry for the inconvenience!