These "charities" have two objectives - 1) collect as much money as possible in order to finance their executives lifestyle and increase their lobbying power (which in turn helps them to collect more money) and 2) pamper the egos of the executives who feel the urge to impose something (does not matter what) upon others in order to feel better about themselves.
So, the easiest thing to achieve both objectives is to lobby for new legislation - you can spin it as a measurable criterion of success and you don't need to *actually* do anything to support your declared cause (which is usually very difficult to do in real life anyway).
A couple of days ago on BBC Breakfast they were promoting that "charity" and so invited parents of a girl who killed herself because of bullying:
BBC: There is that wonderful charity organisation which fights against online bullying. We have invited parents of a girl who killed herself to illustrate how prevalent is online bullying. [to the parents] Please tell us what happened?
Parents: Our daughter killed herself, probably by accident. She was being bullied at school and we think she might have taken an OD to attract attention, cause sympathy and maybe hoped to end the bullying that way.
BBC: And was all this bullying happening mostly online?
Parents: Actually, there was that one message on Bebo... But all of it really was going on at school, in person.
BBC: .......(pregnant pause)........