The 'Activity Stats' and 'Recent posts' etc... fields in User Profiles seem to be broken.
For instance, Brad (Frogboy) just posted in the forums but, in his profile, the last time he is listed as active dates back to November 2013 (!).
Even though the last post he made regarding Surface 4 does indeed show up in 'Recent Posts', the post immediately after refers to a thread from 2012 (!).
Island Dog's is listed as Last Active in December 8, 2015.