The sceptic thing is to thing scientists are above human and infallible. And to ignore tons of precedents of BS substances and drugs being brough to the market, only to be recalled a few years or even a few decades later.
Because "science" is a magic word, that somehow overcomes systemic problems in how burecreacies work, how people (including whole teams) react to money, and how judgements can be wrong. To suggest otherwise is "batshit insane".
After all, those doing the safety testing can take their sweet time to study long term results, aren't ever lured by money, and understand all possible effects of the substances they approve equally well as the collective scientific community understands non artificial substances used for centuries or millenia, right?
A disturbing number of HN readers have batshit insane viewpoints on food.