Submit a Ticket / Patch
If you run into a framework defect, please submit a ticket. A problem cannot get fixed if the framework creators are not aware of the problem. Test hard before you submit your ticket and if the problem sticks, submit it.
Help Out in the Framework Forums
The framework creators help users as best they can, but they can't help everyone with everything. If you have some expertise and run past a question you can answer in the forums, take the time to help them. Not only will you help the person that asks the question, but hundreds of others who eventually run into the same problem.
Interact on IRC
The IRC chat room for the framework is always live with questions -- probably a few questions you can answer. You can also pitch suggestions and patches to the framework creators in the chat room, as well as garner the opinions of others.
Share Your Scripts
Whether you create a blog or post your code in the community forums, sharing your code is a great way improve your code (by suggestions from others) and save others time and the peril of trying to reinvent the wheel.
Don't Discredit Other Frameworks
Insulting other framework creators and their users does not do your framework of choice any good. It makes you sound ignorant and gives your favorite framework's community a bad name.
Did I miss something? Tell me what I missed!