Made famous by morons, trolls, and general malcontents on SlashDot, a FirstPost? is just what it sounds like - the first comment in a discussion. Unfortunately, these are almost always self referential, and exist solely to fuel the ego of the poster.
In the case of our little Wlug, our first post is lost to us - due to the list running originally on a manky ExchangeServer?, and GreigMcGill not keeping archives...however we can point you at the FirstPost? to the first "real" list. point point.
This puts the origins of the LUG at (very approximately) six months earlier.
No other page links to FirstPost yet.