Like the tech bubble there are a lot of scammers out there, and people fall for it.Many of the "innovators" and "entrepreneurs" involved in crypto and DeFi are con men and scam artists. During a tech bubble, people like this can get away with a lot because their techno-babble confuses others and people think... maybe there really is something to this. I know this because I've worked alongside people. Our lawyers used to go over each one of the entrepreneurs we encountered, rejecting each one, and at times we thought of phoning in tips to the US DoJ.
But there is some legitimately good technology being developed.
I'm not investing in crypto just like I didn't invest in a lot of the tech bubble, for a very simple reason. I don't see the valuation case.
I have no idea why a bitcoin is worth ANYTHING.
Are some of the technologies cool, or (potentially) useful, of course. But as an investment, I don't see it yet.
But remember a lot of people didn't see the value of new tech innovations, I still know people who think computers aren't useful.