Those are different, basically.
2 channel is variety show.
Pink channel is Sexually show.
Japan has a special law for a sexual program (And, Business).
and Almost about Sexual, Who want talk the treated content is personally related to human honor.
Slander and beating to sexual business girls and guys is custom in Pink channel, now.
To our regret, a venomous abuse goes unmentioned more than right stuffs.
A correct guideline is necessary for a pink channel to operate it correctly from 2ch guideline.
Any way, No one can change your own way.
You shoud be better to know and understanding by your self, If you think Seriously.
(Sorry, Those are in JAPANESE)
http://www.isplaw.jp/index.html
http://www.geocities.co.jp/WallStreet/6380/info_1.html
http://www.npa.go.jp/cyber/deai/law/index.html#top1