What will you do if someone used your photo without your consent?
I have a photographer friend whose part time job is to take photos and sell them online. One day, he saw his photo being used by someone on Facebook without his consent. The photo was actually posted by him on his personal Instagram account and maybe the person who used it without his consent stole it from there. My friend actually told me that it was fine that his photo was used for as long as he is aware and is credited. However, the plagiarist didn't ask for his consent and worse didn't give him proper credits. That's why he contacted the Facebook user who used his photo right away and told him to give him proper credits or else he will report the post.
On the other side, if it did happen to me, I would definitely just ignore what happened because I am not a professional photographer and I don't think I have that much of a status as a photographer to report what happened. However, I would like to know if what other professional photographers think about this issue, especially those that are full time photographers.