A system which fails more often than not. Case in point - the "peer review" that took place with the AGW debacle.
Another case in point - evolution. Evolution is basically unnecessary in science - even the biological sciences, outside of the pseudoscientific field of "evolutionary biology," which was basically invented to justify reliance upon evolution as an explanation. I can't tell you how many times I've read journal articles where the author has "tacked on" some statement about evolution which is complete non-germane to the point of the article, but which was probably demanded by some peer-review referee before it could get published.
Your explanation is exactly why I will never trust science, or look to any other man-made “evidence”, or anything that purports to be as such, to prove to me that God exists.