It's just a matter of volatility. If a stock drops by 15-20% once a month, a correction is not called a collapse. If it never moves more than 2-3% per day, a 15% drop causes panic.
BTC is by far the most volatile asset at the moment (excluding other crypto currencies and some exotic real currencies). I think the reason people talk about crashes so quickly is that no one has a clue what's going on. Is it a broad-based move? Is it a few speculators? Is it a conspiracy? For stocks, at least the regulator knows very quickly who sold and if there's something fishy going on. For BTC, no one knows which makes it more confusing.
BTC is by far the most volatile asset at the moment (excluding other crypto currencies and some exotic real currencies). I think the reason people talk about crashes so quickly is that no one has a clue what's going on. Is it a broad-based move? Is it a few speculators? Is it a conspiracy? For stocks, at least the regulator knows very quickly who sold and if there's something fishy going on. For BTC, no one knows which makes it more confusing.