I found this article https://medium.com/leeqwid/how-leeqwids-transaction-fee-mining-system-works-57c22655eb3b

how many SEA token released for each day? I can't find that info on the article

SEA token is the exchange’s native token. 100 Million will be distributed daily in 3 years calendar starting from 25/02/2019 to 25/02/2022, which means more than 90,000 tokens daily. These tokens will be given back to traders who have spent trading fee on the exchange.