So they took advantage of the mis spelling and created this malicious website. If you directly type it to your browser, and make the mistake, you will surely fall for this trap. So bookmark it and check even the spelling just to make sure.
Just same like other phishing sites they are trying to make investors fool through similar looking domain. Actually they are targeting a specific group of people who are existing user of yearn finance or planning to invest in this project. In a situation like this its always safer to make the habit of bookmarking real websites which will keep you far from getting scammed. I have checked their domain and on first look its really hard to detect the difference between "yearn" & "yeanr".
I will suggest our forum newbies to double check any domain before clicking on the link and its the only way by which we can keep distance from phishing related incidents.
When a project is popular in the market, a group of scammers use the name of the project to create a fake website. They are busy coming up with new scam ideas every day.
Most phishing sites build their platform by following a popular site and its nothing new. They know well its the key fact of their money stealing trap.