I first read about this concept from Equal token then more than a year later read it again from bomb token shillers.
Can we have a deflationary token with a meaningful usecase?
It doesn't have to be deflationary. Any token can have a meaning usecase but, unfortunately, most don't have it.
Can a deflationary token make a top 100spot on coinmarketcap?
If it meets the above criteria.
What is the benefit of deflationary token?
Aaahhh you don't have to schedule a token/coin buyback and burn?