Definitely a good thread topic. I would offer this...
"A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world."
I would not want to dignify what the WTBS provides by calling it a "theory" (in the same par as scientific theories). I think, what they often propose is a "guess" (or maybe a "hypothesis" at best). From my perspective, they have yet to provide the evidence to graduate their "guesses" into "theories". If anything, what they have provided often negates their own hypothesis. Just a thought...