Much of the crime is theft, rather than violent crime that south London sees - the postcode mentioned in the link above is the postcode of two shopping centres and transport interchange - the places you would expect to see high pick pocketing and shoplifting, which is what the majority crime mentioned in the report is.
I think the adjacent areas have changed, Leyton and Leytonstone are both far nicer - and in the last years have had new interesting pubs, cafes and shops open up.
Would this have happened anyway? Maybe - but most people I talk to are pretty happy with the changes the area has seen.
I'm still a little sad the plan to open Google offices in the Olympic park was shelved - that would have brought in a whole heap of jobs and new people to the area.
The setting of the movie 'Ill Manors'?
Stratford was recently named as the countries worst crime hotspot[0].
According to the FT, "the bounce" has failed to materialise [1].
I would not recommend a walk around the outskirts of the Olympic stadium for all but the very brave, it's still an area in much poverty with many social issues completely unresolved, notably violent crime (3.5 for every 1,000 people) [2].
[0] - http://www.standard.co.uk/news/crime/westfield-stratfords-po...
[1] - http://www.ft.com/cms/s/2/543cabaa-8a41-11e2-9da4-00144feabd...
[2] - http://crimeinlondon.com/newham/stratford-and-new-town/viole...