I really like Scotty's posts as it gives potential buyers, a really good indication of how while the property maybe cheap it's not always the best. I think you can really learn from Scotty's mistakes and how position, location and close to transport are the biggest factors in getting great % returns. While if you limit yourself to Scotty's mantra of cheap and nasty slumlord areas. The capital gains in that mindset are not that attractive.
For example a property I bought in Brighton in 2008 in the middle of gfc. Which I sold recently returned 370% I admit I spent 800 thou on it. But still it returned 370% and it illustrates how position (close to beach), Location close to trains and cbd. Good luck Scotty if I ever need to by a swamp or a slum building I will ask for your advice.