Why are there no reddits that expose major corporations and government organizations with irrefutable evidence?

I may be wrong but I’ve been looking for a Reddit where people can post recorded calls with corporations or entities that expose prejudice, lies or corruption. Recorded calls would be nice but also emails files texts any record of wrong doings or even medical malpractice. Doctors refusing to give good medical advice without you paying an extra 1000$. With all the resources we have available why are we not able to expose and blast these entities through word of mouth? Again Il say I may be missing something or have not found the right page yet