On this site many people can read scientific studies. Having a medical degree means you can apply to practice medicine for money. Forming opinions based on fact never required one.

You can read studies and form opinions all you want. I do the same. But the post I replied to offered unsolicited medical advice that blatantly contradicts the currently-available information from public health authorities. ("It would be one thing if the covid vaccine actually worked well, but it doesn't. It kind of works, but not especially well. Even worse is people who actually got covid, yet they want them to get a vaccine, which is rather pointless for them.")

When you start to post bullshit online, that's when people -- very legitimately -- may choose to challenge your credentials. In fact, people should challenge your credentials in such cases. It doesn't happen anywhere near often enough, and that's a problem.

If you disagree, then you're part of the same problem. Reconsider your position.

You perhaps don't realize that having an MD degree does not make you qualified to speak about this. Very few practicing Doctors analyze this kind of data.

The researchers who are qualified (and who I am getting my info from) don't have MD's, they have PhD's though. Nothing I'm saying is controversial you know.

i.e. having or not having an MD degree has little to do with vaccine knowledge.

Nothing wrong with PhD’s in medieval dance theory, but they’re not adequate for epidemiology. And what you are saying is not in line with what epidemiologists seem to be saying.