FYI - this isn't a method of monetization. This is a way of policing our community, by preventing people from searching for and finding porn on our site.
Secondly, actual users of our site have not complained, except for a few of our mods who say it makes it harder for them to find bad channels and flag them. So it's likely to last quite a while, since it's very successful in its goal.
There will probably be some complaints from parents or some being redirected to porn sites, but what do you expect? If parents are so offended they should talk to their child about searching for porn on the internet rather than complaining.
If some kid turns 'safe search' off in google and types in 'porn' - will the parents get mad at google?
Not sure where you derived them, but my only point was: usually when enough outraged people are outraged someone/some company gives in. Unfortunate, but true. Personally, I think it's a great idea.
The intent, when searching for porn on Justin.tv, is presumably to find "xxx" "channels". Being redirected to porn is exactly what the user desires, since that's what he searched for.