Pffft, take the high road and become a laid back gamer where if you rise in rank, it's an added bonus, rather than aiming to get senior member, which in fact does not necessarily mean you know a lot about empires and may just mean you're a spamming 'tard. Also works well in MMO's when you play for an extended period of time and then get a fancy levelling up sequence and you get a nice new power to play with. Oooo, works for Empires too, get that handy health boost and regen so you're a right bastard to kill...
Because the devs wanted to discourage spamming. To see your post count, click on your name (Colored as blue), click view public profile and in there you'll find your postcount.