Pros and Cons of Betting/Raising to "Gain Information"

[4_2_it]

I have seen several responses over the last week advocating making bets/raises to "gain information". I want to hear from some the residents here when you think are the pros and cons and why. Hint: Please be sure to include the type of villain you would or would not use this strategy.

I will post my thoughts as the thread develops, but I want it to start on a clean slate. I purposefully avoided posting any specific hands because I want a serious SSNL theory discussion to occur. If you think a posting a hand demonstrates your point, feel free to do so.