Yes, or just the main forum thread of the year. For example,
@valleylynn (apologies for the tag, Lynn) is the moderator of the Sempervivum forum, and she makes the "Sempervivum Chat & Photos" thread a sticky every year. At the end of the year, she takes that thread down, and replaces it with next year's thread.
There are two other sticky threads on the forum that she probably thought were important, and should be some of the first threads anyone sees after clicking on the forum.