Might sound like a conspiracy theory, just like I think new sound cards coming out purposely don't have the sound mixer option in the drivers by pressure of the recording industry so that people can't record what they hear on their computers anymore...

...but there is definitely a problem with porn links showing up with these youtube feeders. I am just now going through the google link you provided and there is a way to get it to show by keywords and eliminating words frrom the keyword function, but I don't know how to apply it to the script (either the Niche one that buyscripts is selling or any of the freebies out there).

LIke this one
Code:
http://gdata.youtube.com/feeds/api/videos/-/bass/-fish/-fishing
will give you videos with "bass" in it (as in music) but nothing to do with fishing. If we can eliminate the porn words maybe that would help until the restricted content can be removed?

Until this is settled, I'm going to have to remove the niche scripts entirely since I can't afford to be having porn stuff showing up.