I’m not sure about dangerous or threatening, but virtually every “web3” product so far has come with a blockchain and token solution that makes it extremely expensive and prone to weird incentives like speculative investing and hoarding.
Look at any web3 style project from distributed file storage to virtual land sales and you’ll find the majority of participants in the ecosystem aren’t actually interested in using the platform. They’re interested in getting there early and scooping up as many tokens or coins as possible so they can flip them to someone else in the future. Actually using any of the NFT based systems can be shockingly expensive ($10-$100 in fees just to modify an ENS entry, for example) or involve a lot of weird financial quirks like a price that effectively varies wildly from month to month depending on blockchain congestion and speculative forces.