A "bump" or "bttt" means "bump to the top" and moves the thread back on to the main pages of latest posts, in whatever forum you're in.
In this case, you're in "News Activism" forum. There is a list of forums on the right side of your page.
The Threat Matrix threads are a collection of FReeper observations, analyses, pertinent links, and news of the latest information available to us here on potential terrorist acts. It's fascinating, very up-to-date. There have been 13 of them so far, with thousands and thousands of posts. I linked the latest one, because it's the only one I've been able to keep up with, so far.
I think there's a FReeper Lore thread that would answer a lot of questions you might have about day to day expressions used by FReepers.
I hope you post more, here, and often. That was an excellent article. I guess you're quite aware of the opinion most FReepers have of the NYT. ;-D
Wow.
Thanks. I feel as if I've received enlightenment from a FreeRep Zen Master.
And you are correct: The Threat Matrix Daily is an amazing information tool. I'm making it a permant stop. Or can I just be, as you say, pinged?
I'm off to search for the FreeperLore thread. It's got to be around here somewhere. Maybe it can be codified and offered up as "FreeRepublic On 5 Posts A Day."