At what ratio of good anecdotes to bad anecdotes should we trust it? For me, the ratio has to be astonishingly high, such that if there are a few people in the discussion saying it did something suspect (much less dangerous), they're always going to be the ones I listen to. Not that I'm doubting your experience; it's just not enough to outweigh the other.
Obligatory xkcd: https://xkcd.com/937/