Honestly, I've just heard their name recently because the most popular that I've been hearing before is always IDEX. I've used the dex personally until they started to ask about KYC. I don't know about blocknet on how long they already are.

But Binance took over it easily, they have an established centralized exchange and upon building up a so called 'dex', they've easily gathered the attention of every trader that likes dexes.