There could be a few reasons for the sticky becoming non adhesive.
The IM thread has slipped to the 2nd page as of late. Maybe the powers that be thought it was time to take the sticky down.
Maybe the OG, the originator, the instigator of said sticky felt his voice was no longer being heard over the BF waves. Maybe he opened his eyes, looked around and didn't like what he saw. Maybe he felt the winds of change a blowing and decided to take down his content. We all fight the good fight for what we deem just and honorable causes. If the fight seems lost, what then?
Who knows why the sticky is gone. Let's try to keep the IM thread on the front page and see if it comes back.