It’s good to have opinions but they need to be backed up with taking action. Otherwise, there’s not much use to it.
In other words, being astute and sharing your opinions is great and all, but don’t share them if you have nothing to back it up, or you’re not willing to at least test your assumptions.
I don’t mean to be judgmental, I’m merely thinking of my own past and how I could have done things differently. I guess I’m saying I wish I had more guts in the past, and would like to see more people take action on their ideas!