From the thread "Hatred of five-nut mooncakes"

Five-nut is one of the most traditional mooncake fillings.

The five nuts are almonds, walnuts, peanuts, sesame and melon seeds.

However, an online post advocating abandoning five-nut mooncakes ignited heated debate online.

Many netizens complain that they have never liked the taste of five-nut mooncakes since they were very young. Some netizens say they cannot identify the nuts in the mooncake. And others complain that they often hurt their teeth biting into the mooncake's rock-hard center.

One netizen even joked, "If you hate someone but do not want to offend him, you can give him a box of five-nut mooncakes to disgust him."

From eastday.com