Thank you. I try to keep it neat and tidy, despite the ads. I spent more time on the drag and drop aesthetics than anything else before I first released it. The little things really do matter, after all.

Yes, it's sort of evolved over time really. Brute force with heuristics, I'd say. The word list is certainly important, along with a few other things that I like to think keep the level of quality above the inferior knock-offs.