It is strongly encouraged to participate, and completely understandable that you may not have anything to share some sprints.
Ideas:
Andrea: Cobb e-filing shopping cart
Daniel: Tracker API
Darinel: Color contrast Axia ADA
Drew: Cobb Deleting party during case creation
Joe: EWI document application image
Joel: DAVID Web
Lee: GSCCCA
Marc: Multi-case conditional assigning
Nahum: Document PDF displaying in details page
Phil: Axia COC service
Stacey: Defects remediation?
Tanya: OOO