There are many factors that can make up reasonable suspicion. To name a few: furtive hand movements, evidence that you are ‘casing’ a location, change of direction upon seeing police, being in a drug-prone location, matching an eyewitness description for a crime recently committed, being pointed out by a witness. There are a lot of factors that when added up in the totality of circumstance could very easily warrant a stop and question. And, if advisable, a quick frisk of outer garments for weapons.
I don’t disagree with you, but you have to have reasonable suspicion for the stop. Taking your garbage out in your pajamas—assuming that is the full extent of the story—is not reasonable suspicion to justify a seizure, no matter in which neighborhood you live. People that live in crappy neighborhoods don’t forfeit fourth amendment protections merely by virtue of where they live.