Tekkit is many years old, and quite outdated, Minecraft 1.2.5 I believe, and so many other things are coming out such as later MC releases, large Minecraft Vanilla servers and what-not which have made obsolete servers like Tekkit old and scarce.
"When the snows fall, and the white winds blow, the lone wolf dies, but the pack survives."
That would be a shame, and no, the server itself has become obsolete. there are a few servers far more populated that get up to 70 people at a time because the staff and group is better and encourages a more social environment. Most of the tekkit staff has left which caused new players to leave right away because it has no moderation. The people in tekkit here often spend most "play" time afking at factories. The old system with like 8 ranks was much better and inviting, especially to amateur players.
Yeah, I liked the old ranking system more than the current, It saddens me to see the tekkit server empty almost daily, especially since It's the only tekkit server I play on, there used to be a lot of players during the weekend though, This might possibly change when another reset is introduced sometime sooner or later (whenever it's needed of course), or the addition of a new feature, but i'm not sure.