When you create an account on Seed&Spark, your User Profile will be viewable to the public. This will include your name, city, your projects, and projects you've supported including projects you've pledged to or followed. Additionally any other optional information you choose to add to your profile like a photo, bio, website, and social media links will be viewable as well.
You can view your public profile by logging into your account, and selecting "View Profile" in the menu.
You can make your user profile private by going to "Manage Account" > "Privacy" then toggle the switch for "Hide your profile from public view."