Social Network Feedback

For this, I posted my video to friends online to see what they thought of it and then I posted the link onto my FaceBook profile to see what everyone that I had on my friends list thought of it so that I could get enough feedback. When I showed them, I was on a group Skype call to see what their opinion would be and they all said it was really good and that it was well made. Unfortunately, hearing them say this instead of it being in writing makes it harder because I don't have the evidence that they have said this. So I will ask them to send me a message on what they thought about it, then I will have the evidence of their opinion in writing.