Draw an accurate representation in the form of a graph of average users per week. Then you will truely see if GK's "population" is indeed dropping or not.
Infact Valikorlia was out way before P2P. Pretty sure Maloria was out before Era because Maloria had the first big-noticable classic server custom tileset. Zodiac is far after Era.. about 4 years later.
I wasn't sure because I wasn't there maaaannnn so I put them on top of one another. I know that playercount--; when it came out, though. Then again its not like it has anything to do with the far right side of the graph which is why I made it in the first place, but hey