I find that I try to make sure I own the basis from which my answer/input comes. There are plenty of threads where I don't say anything, as I know I have no value to add. That said, there are plenty of other topics where I will preface my statement by saying, 'Others know a lot more about this piece of what you are asking, but on this other aspect of your questions, I would suggest...'
I have no problem sharing my insights with people - that's why they are asking. I do, however, try to 'stay in my lane' and don't give people info I'm not confident about.