Q: What if someone report intentionally a good number as scam?
Systems can be abused no matter how intelligent they are.
We have solutions for such situations:
An example of possible scenario could be:
User #1 block the number of their “Ex” and send a complaint to the server so it will be blocked for everybody.
But for User #2 that “Ex” is actually a nice friendly person, so User #2 moves the phone number from the Blacklist to the Whitelist in her/his own device and now the Ex’s number can call her/him normally. (The Ex’s number remains backlisted and blocked for anyone else though).