I think the logical fallacy that’s occuring right now with critics of bitcoin’s price rise is that all bubbles has dramatic price rises (Pets.com, endless bullshit dot com IPOs, housing bubble) but not all dramatic price rises are bubbles (currency collapses)
Because bitcoin is measurable scarcity one can provable show it’s a good store of wealth.
OTOH, the ICO binge is an apt analogy for the IPO craze of the 90s. Investors are buying up securities with no viable business model expecting returns which isn’t going to happen on software that anyone can copy and run themselves. It doesn’t take a $200 million raise for a few engineers to build an MVP. It does take $200 million to run a successful Ponzi scheme (ICOs are probably not scarce and are therefore improper stores of wealth)