Bitcoin was not made to spend. Not for now. There is a misinterpretation of what Satoshi wrote in the Whitepaper: "A peer-to-peer eletronic cash system". He created bitcoin to be an electronic money system. This is a fact.
Do not spend your Bitcoins. Not now.
From what you sites above is there any where is written that we should not spend the electronic money now until later as you said your subject line? I see nothing of such dude. If we don't spend Bitcoin now when should spend it, because spending and accepting Bitcoin is the only way value will be created and more adoption will likewise follow.
That is what I want to ask if not today than when to use Bitcoin? Many people have supported this idea of not using it today but no one has given the logical reason for that. No one talk about the disadvantages of using it now. Its usage will only benefit us and this directly to the market. as this would lead to the further increase in price that would make the Bitcoin more valuable and powerful and this is the great advantage.