Too many secretly believe they're Renaissance polymaths, instead of being humble enough to admit they don't know something.
And of course sometimes being deeply involved makes experts less objective and outsider perspective may bring some fresh air to the conversation.
I have knowledge about adjacent topics. I add the caveat in case someone has a source that substantiates or refutes my hypothesis because I’m more interested in learning
I think it’s extremely common to be opinionated about things we don’t know much about. I don’t even know if that’s good or bad, I do find it interesting.