Certainly. The way IETF works, it is not only for people who have lots of ideas; the work does not stop when RFCs are published. Instead, they want everybody to test-drive it. Again, just like my early role with the Gutenberg Project, my current role is to look at the newest RFCs, try to implement the drafts, try to put them into action, and see if it actually works, or is actually contradicting each other.
So I would communicate to the editors of, say the OAuth protocol, which is a way — over the Internet — to prove that you are yourself. When I implemented it, I ran into problems, but that’s how the draft rules can be changed to fit better into our reality. Today I’m more of an implementor of the RFCs than an author.