Sticky First Post in Threads
 

Is it possible to implement sticky first posts for particular threads, such that no matter which page you're at, you can always see the first post?

There's a vBulletin mod available at Chief First Post - Every Page [Forum Based] - vBulletin.org Forum, though unfortunately it is for 3.8.

I thought it might make a dandy addition for the topics especially in Mom's Basement Laughs and Games.

I wouldn't mind this feature if it was a collapsible first post.