From the Robert Jordon newsgroup (not my own words):

"But this time I will destroy you to your very soul, destroy you utterly and forever." -- TGH: 47, 665, The Grave Is No Bar
To My Call, 563

Maybe he forgot "Fool! You will destroy yourself!" (TGH: 41, 588, Disagreements, 497), where he stopped Rand from
burning himself out. Ba'alzamon is either forgetful, confused, or trying to appear so.

When Rand returns Thom's harp and flute to the gleeman in Cairhien, Thom grumbles: "You could at least have kept it (the
harp) in tune" (TGH: 26, 384, Discord, 323). For travel, harps (and many other stringed instruments) are always detuned: The
tension on the strings is reduced to prevent string wear and possible snapping. (Erica Sadun)

In TGH: 29, Among the Elders, 435, REF?, she inspects an Ogier who lost his mind to Machin Shin in the Ways. For all
intents and purposes, it looks like she's doing whatever AS do when they inspect a person using the OP. However, she is in a
stedding, where touching the OP is impossible. Even more, nobody thinks this is weird!

re: removal of soul vs. the Horn of Valere:

Later in the series, RJ reveals that only CERTAIN PEOPLE can get called by the Horn. It's not like you blow it, and then a pull-down menu appears where you choose who you want. No; you blow it, and you get the people who are bound to the Horn.

Then again, if you've read farther, you know this.