The lesson
Make a company anniversary a founder post about what you learned, and open with that promise instead of a celebration.
A video post by Eric Glyman shows a smiling face next to a Ramp card on a dark surface. The visible copy reads "Ramp turns 5 today, and I want to share what we've learned about what it takes to build a great company." The text cuts at "...more" and the post offers a Transcript control.
Don't copy this unless your founder is willing to be on camera and has real lessons to share. Keep the first sentence that pairs the milestone with what the reader will get.