Hi Jared,
Actually, you can include attachments when posting an answer or comment in the Developer Exchange (http://www.ni.com/exchange). If you are posting a new question in the Developer Exchange and need to include an attachment, currently the best way is to submit the question and indicate you will be adding an attachment, and then respond to the question with the attachment. We are working to implement the ability to include attachments with new questions in the near future.
If you have feedback about the Developer Exchange, please feel free to post them in the "Feedback on Developer Exchange" category.
Best Regards,
Wilbur Shen
Web Support and Operations
National Instruments