That's a good example. 
I don't know if tied off weaves will last forever. If that were true, then the Forsaken would just have woven useless things in large quantities of the OP and tied them off (inverted of course so no one could find them). That way, only the True Power could continue to exist and all the One Power would be in an unuseable phase.

I don't know if tied off weaves will last forever. If that were true, then the Forsaken would just have woven useless things in large quantities of the OP and tied them off (inverted of course so no one could find them). That way, only the True Power could continue to exist and all the One Power would be in an unuseable phase.
The problem with that is that this would cripple the forsaken aswell. Since TP is so lethal to wield, only Moridin channels it freely, the rest only in extreme emergencies. The forsaken would not support anything that would eliminate OP and would likely infact oppose it. And I suspect the OP is vast enough that Moridin alone could not tie off enough weaves to make a significant difference.
As for the RJ quote I looked and only found this:
Week 7 Question: I would like to ask about knotting a weave. Does a channeler determine how long it will last when she knots it or is it dependent on her strength? If a channeler who knotted a weave died, would the weave dissipate immediately?
Robert Jordan Answers: The length of time the knot lasts is the choice of whoever makes the knot. It is not strength-dependent. And the knot would continue in existence if the channeler died, at least if the channeler had not set it to unravel in a certain time. Remember, tying off a weave is a way to keep the weave in existence without having to actually channel to maintain it, so once it is tied off, there is really no need for the channeler to continue living for the weave to be maintained.
Does shielding go away when the shielder dies?
21/05/2010 04:51:52 AM
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Her shield was tied off so No
21/05/2010 05:23:46 AM
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I agree with that guy ^
21/05/2010 06:44:13 AM
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Regarding her shield
21/05/2010 03:03:41 PM
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Moghedien also seems to have had this skill, which makes sense since she is more skilled than Asmo
21/05/2010 05:27:43 PM
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Is Mogs more skilled than Asmo or was it Nyn being less skilled than Lanfear?
21/05/2010 06:32:47 PM
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I think Moghedien is very skilled but lacks the motivation or desire to be openly aggressive
21/05/2010 09:24:40 PM
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I'm of two minds there
22/05/2010 12:40:10 AM
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But Ishamael was killed by a shepherd and Lanfear was tackled by a midget.
24/05/2010 06:30:08 PM
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good points
24/05/2010 08:37:28 PM
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I have a different opinion of Moghedien.
24/05/2010 10:42:30 PM
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Re: I have a different opinion of Moghedien.
25/05/2010 05:38:22 PM
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I don't like her personality, but I like her character way more than Moridin and others!
25/05/2010 08:03:39 PM
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I guess what I'm saying is that I think what you are talking about isn't really OP skill IMO
25/05/2010 11:21:58 PM
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Re: I guess what I'm saying is that I think what you are talking about isn't really OP skill IMO
26/05/2010 05:06:29 AM
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true, but she's changed a little since becoming Moridin's slave
26/05/2010 01:39:44 PM
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Re: true, but she's changed a little since becoming Moridin's slave
26/05/2010 05:14:17 PM
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Re: Her shield was tied off so No
21/05/2010 05:36:57 PM
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Re: Her shield was tied off so No
21/05/2010 06:03:15 PM
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Re: Her shield was tied off so No
21/05/2010 06:36:35 PM
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Re: Her shield was tied off so No
21/05/2010 06:49:58 PM
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