I remember a hyperbolic readme or other such txt file for Postgres in the far-away long-ago time when everyone was on Slashdot. The author had written one of the most enthusiastic lovenotes to software I'd ever read, and that includes Stephenson's "In The Beginning Was The Commandline." It was a Thomas Wolfe level of ejaculatory keenness. I'd love to read it again if anyone else knows where I can find the file. So, even if there aren't actual Postgres reps, there are most assuredly evangelists.