The last MMO I properly played was Black Desert Online. It is an absolutely amazing game but with disgusting monetisation. It did however also become a dangerous addiction in my life. It is currently free on steam I believe though!
Since that experience I haven't really played any MMOs, I tried out Throne and Liberty a few weeks ago and that was the most boring couple of hours of my life this year.
As a huge Guild Wars 1 fan, GW2 was one of the biggest disappointments ever.