We have been discussing this in chat, and we have come to the conclusion that if the challenge is only interesting because of the challenge type, it should be closed. If the challenge is interesting because it is the first challenge of its kind, it's okay, but further trivial questions in the genre should be closed as a duplicate of the original, unless they add something innovative or new to the category.
Like with any challenge, repetitive novelties get old. If we start seeing challenges like this that are almost certainly duplicates of older challenges that previously had other tags, we should close them. Note that this doesn't mean the posts have to be exact carbon copies - we don’t want “print ‘hello world’ - duct-tape-coding”, “add 2 numbers - duct-tape-coding”, “sort an array - duct-tape-coding”, etc…. Taking a trivial challenge and slapping the newest tags on it is not fun, and will almost certainly become the next code-trolling.
Therefore, our policy for new challenge genre types should be this:
- On seeing the first new question in a genre, we should begin by defining some rules for said genre. We don’t want ambiguity with other challenges or loopholes that are easy to exploit. Also, define a scoring method or a way of comparing answers.
- For further questions in this genre that are trivial or add nothing new, close as a duplicate of the original. Some ways to judge this are:
- If the challenge is only interesting or remotely unique because of its tag, or it has been asked before as another type of challenge (e.g. "Calculate square root - duct-tape-coding"), it should be closed as a duplicate. The question to ask is “Would the underlying (algorithmic) problem be interesting as an established type of challenge, e.g. code golf?”
- If the challenge can be solved in the same way as another challenge in the genre, close it as a duplicate. This has been very prominent in code-trolling, where most or all of the challenges in the category could be solved in almost exactly the same way.
- If further questions are remarkably different in some way, we should leave the question open. If we want new challenge genres, because code-golf might get a bit monotonous, we need to leave the more interesting ones open.
- If the challenge makes the problem significantly different to solve than other previous challenges, leave it open.
The goal of promoting this policy is to avoid challenges in new genres being created by taking a trivial task (ex. sort a list, add two numbers, etc.) and slapping the fancy new tag onto it.