[aatd86]

I don't understand what you mean respectfully.

If it's about statistics and sampling methodology, I am afraid we are veering toward being quite off-topic.

I'll say that my comment was toward paying attention to the different kind of study methodologies, such as metanalysis vs randomized controlled trials and even within the latter, there are differences in qualities depending on how the control group is ensured. As opposed to experimental groups as well.

Then of course sample size.

All that because cross-correlations are possible and correlation is not causation in general.

So yeah, in the end one can ask on hackernews but that will not be statistically relevant. Worse there is the bias that people who have undergone such procedures without issue won't report most likely. So really that's not a way to collect scientific evidence.