Starts off mild:
User Submissions and License By using P4IdeaX, you agree that any information you send to Perforce via P4IdeaX, including suggestions, ideas, materials, and comments, (collectively referred to as the "Materials") is non-confidential.
But then gets stronger:
Now, I think that recent updates to US patent law mean that there is no grace period here. If you post to a pretty-much-public website like p4ideax, then you have made a public disclosure and may not patent.
This is interesting. What if the materials are not yours to license? What if you are posting GPL'ed materials? I can imagine some lawyer arguing that because you did not specify GPL when you posted, than the GPL would not apply.
This is the other side of ARM's "click-through licemnsing": to view ARM materials you have to promise not to use them to detect patent infringement.
As for p4ideax: haven't registered yet.
What about posting a link to a blog on my own site? The link is licensed, but is the content I linked to licensed (I doubt it).
I guess my interest is left over from working at IV.