I recently posted the puzzle Evil Kidnappers are the worst!, but it has received very little attention over the last 3 days. I'm not sure what's wrong with the puzzle (if any at all). Perhaps it's not interesting? My other 3 puzzles had received answers a lot faster, but the format isn't all that different.
Can anyone tell me how I can improve the quality of my puzzle, or tell me why it seems to be so unpopular?
Edit: It's now been 2 weeks. A bounty has gone and passed on the question, but it has received few views still. Seriously, anything I can do to improve it?