The type of picture one takes expressed what the photographers mentality too. So if the photographers always takes saddist photo, it may reflects the photographer's personality too internally. So it is just like asking a child draw to express their thoughts.
Therefore it is normal for people to be on the caution side when they sees one.
i like street photography too. it really depends on where you take those photos. if in tourist attraction areas, like no problem. just smile and be friendly. but in places like hdb areas...i think best not to try la unless u got lenses that can shoot from afar.
Pervert is a form of obsession or addict (like anyone), just that the degree is extreme and the method of getting what they want is unnatural, endangering and repulsive to people.
Photographer who has extreme interest in taking pics is a similar form of obsession, just that objective are easier to achieve and non intrusive. Takeaway their human logic and they "may" become one.
If you are one that don't feel well without taking pics (xmm or any kind), you are at that phychological level, just that your humane logic is still in control.
Extreme interest is not limited to photography, can be anything. So beware who or what you are doing all the time and be self aware. Drugs and alchohol are some that blocks that human logic, leaving what's left the beast.:devil: