Because Travian is no longer a game, but:
1) Bugs, glitches, fails;
2) Backups and rollbacks;
3) Gold over the skill;
TL;DR - Don't play Travian, because it's not Travian.
I've lost faith to the game, since it's just place for all kind of donors (especially multers and others) to spend their money and to enjoy "bug-free" game.