That is an interesting thought. I hadn't heard of Mechanical Turk before.

I suspect what will happen is that some folks will emerge who are both a) really good at it and b) enjoy it because it is kind of like a puzzle, and some of those folks will wind up spending a lot of time on it.

Of course there will be some folks who are really bad at the task, but will want to participate nevertheless.

I'm not sure that everybody should be "equal". Some kind of review committee could be setup with an invited group of the gurus (first category above). You could view the main crowd as a big idea generation machine. I think reviewing and rejecting bad ideas is an easier task that coming up with the idea in the first place.

I'm not sure that having alternate pronunciations is a problem? If I see LCK, I immediately come to "lock", but someone else might say oh, that is "luck". In a dictionary, there are often multiple meanings and definitions. I presume that the same thing will happen here.

An interesting problem.