Not to worry - Mav.bot is part of the new upgrades for the forum. A lot of us (including me) noticed this new guy named Mav.bot on the forum making all kinds of new posts. Many have been concerned and reported it as spam. Not to worry. It is a "bot" program that automatically searches out interesting articles on the web for us and posts them here for us to read. It will post a lot at first and slow down once it has searched out and posted many relevant things for us to read.