Do you know that if you watch in-stream non-skip ads for more than 30 seconds, the advertisers pay money for that. In 2015, YouTube forcefully wanted viewers to watch 30 second non-skip video but now they have changed it to 5 seconds. I upload videos on youtube that are instream ads friendly and run those videos on autopilot for 40 seconds with different IP to cash in money. I have included pics to prove you. It's a new trick, try it.