Ask HN: Allowance for “for fun” post and comments?

Recently, there was post on HN [0] about SETI being baffled by a signal from the stars. While there were serious comments, there were also some comical discussions [1] as well, just having some fun. I think that these frivolous comments are frown upon here as these comments were either flagged or downvoted.

My suggestion is to allow one fun post that allows for humour and fun to be posted as well. What do you think?

[0] - https://news.ycombinator.com/item?id=12388228

[1] - https://news.ycombinator.com/item?id=12389594