I am on the side that says be skeptical, and don't be afraid to post.. this is a Discussion Board, so the object of skepticism has a chance to respond, that facilitates learning.. or not.

I remember when I was brand new to ECCIE.. a couple of folks went after me right away.. in PM's, they were too chicken to post I guess. 7 years later I wish I remembered the handles of those guys, it would be humorous to know.