Factors to consider:
1. Did God tell you to?

2. Do you have all your facts correct?

3. What's your motive for making the videos?  You would have to be sincere here. Do you merely want attention and an audience? Are you being in the flesh, trying to get attention by using the name of a popular person?

4. Lastly and very importantly is there love in your heart? Have you tried to reach out privately to the people you intend to expose and did you receive a rebuttal?