I seriously doubt Kapil Sibal's intentions in wanting to censor the content on social networking sites.
I feel, the government wants to try and control backlash from the people when Anna Hazare launches his next round of protest against the government on the issue of Jan-Lokpal.
After all, it appears that the standing committee will be presenting a draft that will go against he "sentiment of the parliament" that had accepted in principle the points raised by Anna Hazare and his Jan Lokpal Bill. I feel, that he thinks a controversy of this kind will distract the people frequenting these sites.
We shall know the truth by this time tomorrow, when Abhishek Singhvi will have presented the report of the standing committee before the house.