With your personalized profile, this allows requestors to learn more about you. A profile can include a headshot, videos, a link to your social media (LinkedIn or other sites), a description of your educational background, skills, experience, specialties, and certifications. This will help requestors make an informed decision on selecting the bid(s).
Also, your personalized link will allow you to use it as your public profile. The link can be shared with anyone including potential requestors who may decide to add you to their favorite lists.