Why are some coins "dog coins" and some coins "value coins"?

Dog coins: A team of a few people, take advantage of a hot topic, create some air, control the market by themselves, and cash out when someone charges up, and retreat after making hundreds of millions of dollars, without sharing the spoils with others!

Value coins: A team of dozens of people, with a few awesome capitals and big firms; tell stories, talk about concepts, and talk about the future! Then copy together, make billions of dollars, and then slowly return to zero.