Dancer is a modern Perl project - it's already in use in many production deployments (see the Dancefloor page for some examples) but is still being actively developed and improved.
There are many ways you could contribute to help make Dancer even better:
There are many, many frameworks out there, marketing can make a difference. If you like Dancer, tell the world about it:
Promotion and marketing is a very valuable contribution to the project.
Of course, using Dancer is the best way to help the project