Old Thread Warning - Where can I find it?

[puroeuro]

I've seen this on some sites before and I've done a search here but I guess I wasn't looking for the correct keywords to find it. Here is an image of what I'm looking for:
http://img182.imageshack.us/img182/4345/oldthreadhv4.th.png (http://img182.imageshack.us/my.php?image=oldthreadhv4.png)

[Opserty]

Prevent bumping old Threads (https://vborg.vbsupport.ru/showthread.php?t=96850&highlight=old+threads)

You needed "Threads" instead of "Thread" in your search... I knew I'd seen it somewhere. :)

[puroeuro]

awesome, thank you. it's sometimes really picky when searching for stuff. that one letter threw it off. :p