True, very true--but aside from Mt. Gox's relative dominance, has there been a bigger collapse of an exchange?

As far as the "don't use a token you created as collateral" statement goes, I don't know whether to agree or disagree with that, because I don't think it matters so much who created a token used as collateral as it does the token's volatility and/or potential to drop like a stone if put under enough pressure.  And frankly, using anything other than a stablecoin as collateral is extremely risky.  Even bitcoin is notoriously volatile, and just look at what would have happened had you used it to secure a loan last month or even last week.  Yikes.