If you don't know what that is, watch these two videos.

http://www.youtube.com/watch?v=dB4gSpwyUdU&feature=channel_video_title
http://www.youtube.com/watch?v=WxJuGhbEsUI&feature=related

I think that this is just another reason the YT community sucks so bad, as if people going to random places and begging for likes, and subscribes wasnt bad enough, now people are literally MAKING other watch their videos (well, not making them, but forcing them to have to be reminded they are there all the time).
This is overly selfish and just not fair, like what Muzzafuzza said, there are people with over 100,00 subscriber only getting 10th or less of their subscriber base and this vdeo bumping thing only makes it worse for people to publicity and gain partnership.