Recently i get this Notification "Increase Quality & Improve Expectations"

[tanchijahantono]

Should I fill out this form?

[mariashtelle1]

Well, the form is called “RSVP” so that is the form to let fiverr know if you will be attending the webinar. 
There is even a description of what will be discussed on that webinar. 
So if you want to attend that webinar then yes, you should fill the form. 

[imagination7413]

Not enough information.

Where did you get this? Is it an official Fiverr URL? If it's authentic, are you actually interested in any of the topics being discussed?