So since im never around, I was checking out the new layout since the VB4 switch. Was trying to check out some old threads, and they are gone?

Dunno if this has been addressed yet (prolly has)? But I was just curious how, if possible, that they can be seen again? If its a time thing, meaning that threads older than a certain time, wouldnt alot of the old RPers lose training threads? Amongst other important threads? Or is this just me?