Good blog post from Sasha:
https://blog.wavesplatform.com/security-tokens-inevitable-fbf4d393a1de
"We want our DEX to be the first regulated decentralized exchange"
Maybe all Vostok, Tokenomica and these steps are taking us somewhere new.
this post needs further discussion.
He is probably a pioneer in evidencing three different token categories, even if his definitions are easy to understand.
maybe differenciated DEXes will become standard in the future.
however we are too early IMHO, as DEX concept and use struggle for their early existence.
as soon as the volume allows, better move to individualize payments, securities and commodities, categories who exist in the real life.