Quoted from the rules posted under "Forum Rules" in that section. The error message is generic to suit many situations.
Important: 90 Days and 100 Post Rule
You must have been a member of Puff.com for at least 90 days and you must have at least 100 post before you can post a new thread (or reply to a thread) in this section.
Those that have already created threads prior to 1/14/10 that were under the limit will still be able to respond to the threads that they had already created. All of those deals will finish out and no one else will be able to create new threads (or reply to a thread) until they meet the requirement above.
Refuses to remain the Droid they were all looking for.