WWMLKD? (What would Martin Luther King do?)

As with Jesus and Einstein, people often quote Martin Luther King to back up whatever point they are making, often without doing any work to find out what he actually thought about similar issues. For instance, here we read the following questions, asked purely rhetorically with no attempt to answer them, on what Dr. King would have thought about the repeal of "Don't Ask, Don't Tell":

As Martin Luther King day passes again, we as a community must look into the past fight for civil equality. What would Dr. King say of our movement? Would he be joyous that we have gained the right to fight openly in the US military? Or would he be telling us that it is time to work on reconciliation with the Iraqi and Afghan people?

Then again, perhaps King, like Jesus and Einstein, mystically agrees with whoever invokes his name on any issue.