I agree with 5team when he says that they are good as long as they are limited. Having 16 NFL threads is just excessive. How about just locking the major matchups? For instance, this week many of the games were pointless with no effect on the playoff picture and using a lot of backups, etc. Don't bother making those sticky.
But maybe the Cinci/Cle game since it had playoff implications. Maybe always do the Monday night game and Sunday night game.
I think if you limit it to 3-4 pinned threads, everyone will be happy. I usually don't read the pinned threads anyway, but I can't imagione that they ALL have good information.