The reasons why that case did not fit my above description are the following:
The OP was not talking about something that was happening at that moment. He was talking about an ongoing situation which required an ongoing solution. He was trying to figure out who the best people would be to help with this ongoing situation as opposed to doing more harm. He realized that he was (understandably) very emotional about the situation and in danger of over reacting and acting on his emotions. He did not think that someone was about to die. He did think that this was a situation that required intervention and he was unsure who the best person to deal with it was.
He spoke to a Rav who is respected in the community and who knows both the family and himself. Knowing both the family and the OP, the Rav had some understanding of what the situation really was about (and to what extent the OP was over reacting or not) and determined that he would be the best person to handle the situation (which may have meant that he was handling it himself or it may have meant that he was calling the people who he thought could best handle it – whether that was the police or Shomrim, or whatever).
Since this is not a situation that can be handled in a second, it is still going on. That does not necessarily mean that the Rav was the wrong person to call or that he is not handling it the best way possible. It might or it might not. Whether it does or not, it is an emotionally scary situation to be in. The OP is naturally very nervous (and since we don’t know him, we don’t know the extent to which he has a tendency to get nervous). He is still unsure as to whether or not he is over reacting.
The Rav is well-respected in the community, but it is possible that he was the wrong Rav to call. In that case, it is necessary to call another Poseik before calling the police. Calling the police on a fellow-Jew is a problem and can only be done after asking a sheilah.
If someone is pointing a gun at someone, yes, you call the police right away. That is not what is happening here. This is an ongoing situation involving shrieking. It has been going on for days, and the people are going about their business with no obvious signs of physical harm. The OP has no reason to believe that there has been any physical abuse. He never wrote that he felt that anyone’s life was in immediate danger.
In all the time, it has taken for him to post and people to respond, he could easily have called a poseik.
I suspect the reason he went to the CR instead of a more logical address (another Rav, Shomrim, etc) was that he realizes that he is being very emotional and needs someone to calm him down.
The last thing he needs is to have people frighten him into acting on his emotions.
What he needs to do is to speak to a reliable Rav (and not anonymous posters) someone who can hear him out and evaluate the situation and determine if this is a situation that does in fact call for police involvement.