The REAL definition of White Knight: Someone who defends everything a company does, no matter what they do, to the point where even the murder and consumption of babies would receive a positive spin ("The devs have to eat too, you know").

The COMMON definition of White Knight: Someone who disagrees with you, especially when you're arguing from a sensationalist position with plenty of emotion, but very little substance.

The CURRENT FFXIV definition of White Knight: Someone who doesn't label the new app as P2W*.

There is such a thing as a White Knight, but I don't think I've ever seen the phrase misused more often than here on the O-forums.

*Because it's not. Come at me.