[Although Uncle Changfeng did talk my ear off back then, it didn't stop us from going to Jiuxiao Peak to have fun.]
When did this harmony get broken?
It was when Feng Yuzhe fell into the Spellbound Abyss and his path to immortality was destroyed, trapping himself in his Immortal's Cave with his inner demons for years.
Feng Changliu was not normal either, especially when he frequently heard of disciples from other peaks breaking through their cultivation levels or ascending from Golden Core to Nascent Soul. At that time, he equally detested the talented disciples from every peak.
This was also why he took on Liang Xuan as his direct disciple despite Liang Xuan's mediocre talent.
Every disciple who went to Jiuxiao Peak to visit Feng Yuzhe would be angrily scolded and driven away by him.
Even Lu Xingyan was once chased away from Jiuxiao Peak by him pointing at his nose.