Every so often, I see people on HTF pushing on-line petitions for some thing or other. But, do these things actually do anything? I read that studios don't pay any attention to those because they feel it's much too easy for someone to "sign" them. In fact, any type of petitions almost never do any good. There have been a few cases where hand-written letters helped tipped the scale if a studio were on the fence about something. Are there any examples when on-line petitions actually were effective?