Technically speaking you can't attribute a stock/asset to a bubble without it crashing. Until then its purely speculative which has no underlying foundation.
That is the very definition of stupid. You can't say something is in a bubble until after the the bubble has burst?
You can say it, but you can't say it with certainty. I agree that BTC is in a bubble, but you also can't
know that in as irritating a manner as you do.
A fundamental problem in Bitcoin. All agree there is a big problem, but no-one can agree on actually doing anything about it - because part of the community makes good money from the flaw.
It's an important security mechanism. BTC prides itself on allowing people financial sovereignty. If there was a problem major enough for people to begin leaving - for there to be a panic - consensus would naturally have to form.
For example, in 2010 (before the code was widely checked, as there were not many users at all), there was an overflow bug. Everyone quickly forked to a new chain in which the problem had not occurred, and their funds were safe.
That's the magic of decentralised consensus.