I can confirm it's not ambiguous but then the explanation i presented is the valid one, so for the sake of not totally refusing to consider the other possibility, i will just call it ambiguous and needs to be "confirmed"
Here are some of Theymos sent feedback
So unless theymos did trade 100,000.00000000 BTC with sirius or 10,000.00000000 BTC with gmaxwell then my theory is valid, and I highly do believe these numbers were never actually traded, thus the word "you" there is simply a poor choice of words , or Theymos does not follow his own guideline.
You are making a mistake in assuming there are a set of rules that apply to everyone that govern this forum. The rules are whatever those in control say they are at any given time. We don't have rule of law here, we have might makes right.