There is a huge difference between speculatively giving money to a company that may or may not provide you with a product and a company promising investment returns. The amount you'll give to the product company is capped by some plausible valuation you give the product itself, which is virtually always very low relative to your net worth. The same isn't at all true of an investment opportunity; people can and do lose their life's savings chasing sketchy investment returns.

If your point is that cryptocurrency speculation should be heavily regulated and even restricted to accredited investors, you won't get any disagreement from me!