This would only happen if you had an influx of people with money to an area experiencing poverty combined with an unresponsive police force funded by a corrupt government.
The place is not dangerous as long as u use your head. DONT LEAVE VALUABLES IN A VEHICLE!
The things with the forums is:
-everybody can hide himself behind a forum name
-forums in many, many cases are used to spread the bad news. Forum people often only want to complain and not tell the nice and good things.
-Investigation from a famous London university: when you have something good to tell that about something, you only tell that in general to 1 person, the contrary, if you are unhappy, you are telling that to 7 people.