Fake listings are a fact of life. There is fake currency, fake rolex websites, fake tinder profiles. We mitigate this with caches of "whitelisted suppliers" suppliers verify their addresses in the cache and are added to the whitelist.

Currency fluctuations are high, just like every other crypto and some FIAT currencies, Venezeula, Argentina. Compared the FIAT currencies, crypto's fluctuate in both ways, rather than just down. Lif is fully liquid and can instantly be transfered to FIAT as soon as the supplier receives the payment. We're also closely monitoring developments in the stable coin segment.

Scalability is handeled though state channels, the blockchain will not store all the data which the author assumes. In fact, on-chain data will just be very basic data. We've already published intitial versions of state channels for Winding Tree. https://blog.windingtree.com/lif-token-state-channels-1dc2629617f0

Overall the comments are more criticism of blockchain technology itself.