What is BTT?
This question comes up a lot.
It means simply Back To Top, or Bump To Top. It is a way to take an old thread that is on a back page and move it back to the top of the Forum. Our Moderators are bumping some of the old questions back to page one because they feel they are interesting enough to have a second look.
I spent a good deal of time creating a list of acronyms one might see on the Net, which is posted as a sticky in this forum (at the moment, the third from the top): http://iaaforum.org/forum2/viewtopic.php?t=620
I can absolutely guarantee any acronym I use will either be in that list or commonly used in the cartridge collecting community (e.g., “HPT”).