I am very amused by the repeated comments about [not] giving hints, and the rage that some evince when things go too far, as they see it. Why is this? Here is my list of possible reasons:
1. The setter may not want anything given away, expecting everyone to rise to the challenge individually and unaided. This is not a good reason. The setter's job is to provide entertainment for the solver. How the solver obtains it is the solver's business—alone, in pairs, with or without solving aids, whatever. The setter's expectation should be that the solver will eventually solve the puzzle, not be frustrated by failing to. It can be very frustrating not to be able to finish a puzzle, and if that is so, some entertainment is lost. Therefore, if a solver gets extra pleasure by being helped a bit, that should be acceptable. The help is justified because it adds to the general stock of pleasure the puzzle provides. [Incidentally, I am sure that Elap's comments about his puzzle were very much tongue in cheek.]
2. Some may feel that the time a setter puts into setting a puzzle should somehow be repaid by the solver. This is also irrelevant. If each solver spent only one hour trying to solve a puzzle (and most spend much more than that), 500 person-hours (on average) would be spent in solving, much more than any setter ever puts in to setting a puzzle. The setter's efforts are always more than fully repaid in this way.
3. Some solvers may feel that if they had to struggle, so should others. This is a dog-in-the-manger attitude. See also point 1.
4. Some may not want to take advantage of hints and may feel themselves robbed of the challenge if they are exposed to them. This seems to me to be reasonable, but as others often remind us, you don't have to tune in until you have finished the puzzle yourself. I don't.
5. Some may feel potentially cheated of a prize if others had help while they did not. The prizes are too trivial to bother about th