The following Dodgers have been smited by the JDK for their crimes against Jam:
All the girls! for picking on the JDK and damaging his already delicate self esteem!
The Basserd Who Nicked Copper's Stuff For the offense of nicking Copper's stuff. You are a tw*t, whoever you are and we all hope you get run over by a tram in Nottingham. Or Liverpool. Or whereever else they have trams!
Copper For the crime of playing with her Wii instead of her Jammie pals!
• adjective (stickier, stickiest) 1 tending or designed to stick; adhesive. 2 glutinous; viscous. 3 (of the weather) hot and humid; muggy. 4 informal difficult; awkward. 5 informal (of a website) attracting a long visit or repeat visits from users.
— PHRASES come to a sticky end informal be led by one’s own actions to ruin or an unpleasant death. sticky fingers informal a tendency to steal.
It quite literally means that the thread is sticky. So it sticks to the top of the board and doesn't disappear off into the ether (or page 2 as it is commonly known). I can make any thread sticky, simply by spreading jam on it, rubbing a fried egg all over it or clicking on the 'sticky' button (which you can't see!).