It's the whales who give big gift if they really like the novel. The average paying reader most likely won't give gift or give little.
On Qidian in China, it is not uncommon for a popular author to get gift of several hundreds dollars from a rich millionaire.
https://www.qidian.com/rank/fans
DAILY LIST
the #1 on the gift list today gave 210,000 Qidian Points (about 2100 yuan or about $300)
#2 on the list gave 114000 (about $163)
#10 on the list gave 100000 (about $150)