WAR isn't *useless*. WAR is a perfectly viable class: it can run content. People have demonstrated this. The problem with them is that WAR is demonstrably and noticeably *inferior* to PLD for all intents and purposes: they have no real DPS advantage, require more external healing, and have a CD suite that can't handle emergency situations as well.

The problem is that people keep interpreting "inferior" as "useless". If you're only interested in using an optimized composition, yes, WAR is useless. If you're just interested in bringing the classes you and your friends enjoy while clearing content, WAR is perfectly fine to bring. You'll have an easier time with PLD, of course, but it's not going to prevent you from being able to clear content based entirely upon your class choice.

The entire discussion has gotten more than a bit hyperbolic. I'm one of those people that readily points out the relative performance of a PLD and a WAR. Many people have interpreted this as me having a belief that there's no point bringing a WAR to anything. This isn't true. Hell, I *still* play a WAR even though I've got PLD at 50 because PLD is just boring.

WAR fulfills the minimum performance requirements of a tank. They're not "useless". They're just inferior.