Offer is a main attraction of your client and fiverr allow to send daily 10 offers to client for all members and when you write simple offer so client is not come your inbox when you send professional style offers so client will be come inbox first of all we need to understand what is simple offer and what is professional offers let me explain differentiate just example it.
Simple offer !
yes i will do your work and when you give me project you will be feel very happy thanks
Professional Offers !
My prior responsibility to give you the best work in your time and budget.I work as per your requirement and guidelines. I work best and do best. I am expert in my work. i have Complete multiples projects thanks
i hope you understand the standard of offers