It is total nonsense to state that the ripper had no surgical skills. To suggest that he lived in Flower & Dean Street is more ludicrous speculation.
Jack was too clever and would not have drawn attention to himself by living in the area. The murder of Kate Eddowes is important here. Un der the very noses of the 2 police beat officers and a former police officer who was a night watchman in a building overlooking the murder scene, Jack was able to lure his victim into Mitre Square, kill her and disembowell her inside the space of 5mins or less. Nearly all medical experts at the time stated categorically that there was no doubt was a gifted surgeon, especially when you think that he was able to locate a kidney, identify it as a kidney, and do all this in the dark, come on, when will you arrogant academics catch a grip? This also proves that Jack was NOT insane, and even if he had been, he had accomplices. Who else would have the capacity to fool an entire generation for nearly 120 years? Its a bit like believing that the Kennedy assassinations were the work of Lee Oswald and Sirhan Sirhan.
The only reason why these people are trying to make you believe that Jack lived in Flower & Dean Sreet is because they want to rule out a medical expert to save face. It doesn't fit otherwise.
