Global Forum Announcements/Stickies
We are not currently planning to implement this as a Forums feature, but you could do something similar with a News widget at the top of the forums (or the bottom, underneath the content, for longer ones like a ToS) that pulls the announcement you’d like to display.
Jeremy Triebwasser commented
Any word on this if its even being considered? I don't think it would be hard to implement and it would be fairly quick....
even a small 1 line box above the rest that [marquee]'s