Inquiry, investigation, research, and curiosity are all to be admired. Without them everyone would have a closed mind and advances in knowledge and virtues would mostly cease. There is something about the dogmatic, closed-mind attitude that upsets others. Once this value of doubt has been affirmed, though, a word of caution is in order. Doubt in and of itself is not a virtue.
Unresolved doubt can lead to drastic consequences, while resolved doubt can lead to good results.
While it holds great power for right or wrong, good or evil, truth or error, within itself it is none of these things. It is uneasy, unsure, unsettled. The ideal in the New Testament is faith, not doubt. Some of those who attempt to glorify doubt point in response to the inherited faith many in the church hold. Two wrongs do not make one right, as we have all heard.