Is MAD making considered an artform to you? And if it does, what aspects of them qualify one as a piece of art instead of parody gone nuts?
In my opinion I don't know where the boundary is drawn considering there is no scholarly subset of the MAD making community. I have no idea what that would entail or even operate as but seeing how each language community has been coming together in its own way to critique each other and help to those new to the craft shows that such a thing is possible.
Here are some random selections if you have no idea what an otoMAD is or haven't seen any aside from 4chan dog videos. I've tried to get as much variety as possible so I apologize for the long list.
nicovideo.jp/watch/sm18253595
youtube.com/watch?v=KY9PHq0HN-M
youtube.com/watch?v=0xu8h6POw7U
bilibili.com/video/av2224316
youtube.com/watch?v=YKYYr3LrPDc
youtube.com/watch?v=qyZE7ZVxQrY
youtube.com/watch?v=KB5QLaNMqU8
nicovideo.jp/watch/sm18629632
youtube.com/watch?v=gcE7klkmULk
youtube.com/watch?v=iDHVE263QkI
youtube.com/watch?v=J8mEFxdhZE0
youtube.com/watch?v=gDBIjG9FB4U
youtube.com/watch?v=4cG7aK8oVoU
youtube.com/watch?v=DW5fdH2WMTs
youtube.com/watch?v=fON668yozg4