It's a thread which has been stuck on the top.
Like this: *www.thinkdigit.com/forum/showthread.php?t=12964
Superglue is used to stick em, So only Mods with some superpowers can remove them.
'Sticky' threads are created by moderators or administrators (?), and remain 'stuck' to the top of the listing, even if they haven't had any posts recently. Their purpose is to keep important information visible and accessible at all times.
Hi Guest we just wanted to alert you to a major change in the forum. We will no longer be allowing the posting of outgoing links. Please use the attachment feature to attach media to your posts.