[Full Disclosure, I work for MW]
Not so much like MechTurk. Workers are highly capable (many of them have advanced degrees), NOT anonymous (we and you know exactly who they are), reliable, trainable and they work on macro projects (e.g. write a full blog post on topic x w/ research and counterpoints) not microtasks (e.g. take this number and put it here). More akin to virtual staffing than MechTurk.
Plus, we have a commitment to paying fair wages, so no fraction of a penny "hits"
