They are also anecdotal, hundreds, thousands of people suffering side effects. Given dozen of millions people in the U.S alone are prescribed those things daily, that a drop in the ocean. But not everyone post on Reddit either
I never found a sub reddit talking about the side effects of mineral water, how eating apples regularily lowered their libidos, on that sleeping on a mattress made them senile.
At some point common sense primes over what funded science wants people to believe.
The side effects exist since some doctors do warn about them, one may also find them in the counter indications mentioning those things. It isn't unfounded.
What's taboo today is to criticize SSRIs over prescriptions. Odd, given that over 25% of the U.S population are taking them, or some other form of legal psycho active substance, just to be able to "function".