This is getting annoying

[MAmedia]

True but I feel it's kinda cheating. I didn't watch your trailer video, I was just getting to your channel to see your latest video.

Well, It also encourages viewers to subscribe in this case. Video auto plays only for non-subscribers

 

[WolfWraith]

If you don't want to watch via playlist - just delete a part of the link.

That's practically the same as turning off auto play each time, if not more effort -.-

I have to admit the auto play trailer video gets very damn annoying after a while.

That's part of why it works, sometimes if I visit a channel enough times, I'll get annoyed by the trailer and just subscribe. I mean if I'm going to visit it often may as well to avoid the trailer playing.