The forum has reached an impressive milestone of 5 million posts, highlighting its status as a leading science and math community. The exact post that marked this achievement is unknown due to cached stats. Members expressed gratitude towards Greg for his leadership and contributions to the community's growth. There was a light-hearted exchange about the roles of members, with Greg humbly referring to himself as just a "bolt in the machine." Overall, the discussion celebrates the collaborative effort that has fostered such a vibrant online space.