I'm a Bitcoin enthusiast, yet the whole crypto-ecosystem is ridden with crooks and frauds trying to make money of suckers. Altcoins that are obvious scams, services that have "accidental" bugs and loose your money, services that get "hacked", and so on. As a rule of thumb everything in cryptofin should be considered a scam before proven otherwise.

It's quite rare for angular-like libraries to try to steal money of their users.