Please don't talk about acting against pedophilia, if you really want to act against child abuse. The difference is important, and you even seem to acknowledge it exists. There are many pedophiles who are also activists against child abuse.
There are many legal ways to act against abuse. One would be to keep the topic active in social media, and raise a point about making proper treatment available for pedophiles. Currently only few therapists understand pedophilia properly, and the problems pedophiles actually have. This is currently one of the hottest topics in child protection as it is a mostly unused opportunity.
It may be actually even dangerous for pedophiles to seek help, which is really backwards. Would you tell your therapist that you are gay if there was a risk that he would tell your parents? Let alone if you were a pedophile?
To demonstrate the current situation: https://medium.com/matter/youre-16-youre-a-pedophile-you-dont-want-to-hurt-anyone-what-do-you-do-now-e11ce4b88bdb[1] http://www.dw.de/when-society-mistakes-pedophiles-for-molesters/a-18104211

https://www.reddit.com/r/anonymous/comments/2tpvoz/how_do_i_act_against_pedophilia/co1dzmf