You don't like to toot your own horn, but you sure are good at what you do. You just don't go around telling everyone. Wouldn't it be great if someone would do it for you?
Someone's first professional impression of you online (85% of first impressions are now online) will dictate who wants to work with you, how much you can charge, and the recognition and status you receive.
If you do the minimum online with a little bit of a LinkedIn profile, and you're positioning yourself as a pro who knows today's market, you're going to lose out to someone whose online presence is a winner.
Having a personal website that features your work and interests, like a portfolio, is essential for being able to shift gears in the gig economy. If your current work goes away, you need to be able to have your own site for people to find you.
Not to mention how much more pleasant it is when someone comes to know, like and trust you just from your site so that they greet you with enthusiasm.
It's really not about bragging, it's about creating value for the world to know what you do and reach out to you for the projects you'd love the most.
Find out what your personal online profile should have in it.