i think lightning not secure
Decision probably due to the congestion that's happening lately on the main chain.What makes you say that?
I found it surprising they not many people seem to use it, when the fees are so low and the speed of transactions so fast.
Interestingly Binance have just announced plans to implement lightning network on their exchange-
https://cointelegraph.com/news/bitc...om&utm_medium=newsletter&utm_campaign=may-9th