To pre-roll or not?

Don't know about you but I hate pre-roll ads on YouTube.

But at the same time I understand that it's a way for video makers to monetise their content.

What I didn't know is YouTube are very selective about where a pre-roll can run.

As the above notification for the Vlog Bros shows.

In light of the recent furore over Facebook removing a famous Vietnam war photo for violating it's terms and conditions I did and bit of research.

And what I found is it's not actual human people looking at Facebook pics or YouTube vids.

It's an algorithm. And algorithms can do amazing things.

But they ain't quite a clever as humans just yet.