Assuming this is all hypothetical since as far as we know all the lady who has sparked this discussion did was take a photo of a sticker.
Is it usual for someone to contact the police about a long series of incidents which has led them to the point where they just can't take it any more, without having contacted the police previously about the earlier incidents?
If I were a police officer and someone made a complaint about a woman taking a photo of a sticker and when I didn't immediately leap up to go and arrest her, started to talk about earlier damage to their car, the first question I would ask would be, "Did you report the damage to your car at the time?"
If I were a police officer and someone made a complaint about a woman taking a photo of a sticker, I would be checking the files to see whether this person had a history of making complaints about apparently trivial matters, and if so whether there was any link between the people they had complained about.
To me, this seems to basic due diligence that the police should undertake to try and identify bullshitters before they go knocking on anyone's door over a sticker.
If you went to investigate the woman over a sticker and there turned out to be nothing in it, when the complainer had made a long litany of accusations about her, would there be any consequences for them? If not, why not?
As much as I applaud your commitment to dealing with complaints, as other PP have noted, women who complain to the police about stalking, harassment, sexual assault, rape and domestic violence (all of which I'm sure you will agree are far more serious and distressing than stickers or even cars being damaged) don't seem to be benefiting from the same rigorousness. Some of them have subsequently gone on to be murdered by the person they complained about.
Can you see why some of us are wondering why it is apparently only a very special group of people who seem to benefit from gold plated policing?