It is disappointing to see that this is the way workers are viewed by some requesters.
With her research focused on sarcasm, I would hope that this was meant to be a joke of some kind, but it really comes off as derogatory and insulting. If her research is to be taken seriously and her studies are to be considered valid, I would think that she would want human beings to preform her tasks as opposed to "turkeys".
In the past couple of years we have published information to help both new and old requesters understand the workings of Mturk and Amazon. We have tried to give them an idea of what it is like to be a worker and how to ensure they receive quality results from a broken system that is Amazon Mechanical Turk. Tweets like this just make it hard to move forward.