I can't find the link to register, Website doesn't have a register button, can you please guide me on how to do that.
You are inattentively reading the topic. Here everything is written how to join the site. There is no registration as such on the site, you just click any of the buttons highlighted in red and there you connect your Metamask wallet. This is the whole registration.
I don't normally like connecting my Metamask, Trustwallet or any other wallets to another projects because it doesn't look save for me. There was a time when I was ask to connect my wallet before I can deposit funds, men I delete the app and remove the website from my browser instantly. Because in this cryptocurrency world one has to be careful and smart if not there would hack your wallet and collect everything and if there is no funds they can even use it to do fraudulent activities.
Stay clear from those suspicious connection.