[KaNe]

As Deities said, you are not allowed to request a sticky. If a staff member or admin, comes across your thread, and they think it should be stickied, they will sticky it.

[Etheryte]

No. If you think something in the sticky should be updated, why not contact Crow about it?
If your thread actually really was that good, it wouldn't need to be stickied to be active and seen by members, just as a sidenote.