It depends on the area and where you want to live. Assuming the poster is in denver, as the article is and where I am, I can tell you you could do that if you dont want to live in a crap hole and be near your job. Say a starting IT person, not engineer, is making about 40k here, after taxes they are down to about 24-26k. Rent for an OK, not luxury, apartment is about 1200-1500 here now in the area that's close to most of the IT jobs. With that your hitting 60% of your income, post tax.
Rents have shot up insanely here over the past 5 years. The pretty nice apartment I was renting, first floor 1bed with attached garage and 10min to my office, was 850$ 5 years ago. Now that same apartment goes for 1500$.
Now you also dont save that much even switching to a house. I managed to get lucky since due to life changes I had to buy a house, but it was at the very bottom of the market. At that point it was ~300$/month more than rent to get a 2000-2500sqft 3bed house, pretty nice deal and you could get a smaller place a little further away for much less. Now adays that same house costs 100k more, in 5 years many home values have gone up 50%. That basically eliminates any savings someone could hope for by buying a house vs renting at this point.
I do feel really sorry for the new guys we have at work. New engineers that can barely even afford their own 1bedrooms. When I started here 9-10 years ago a starting engineers salary was more than enough to get a very nice 1bed, get a good car, and afford entertainment as you saw fit. Now they have to get 2-3 roommates to afford a place to live nearby, or take on a 1 hour commute as one of my coworkers did since he could no longer afford his apartment and had to move far out to afford his own place.
Now Im not saying any and everyone should be able to afford a nice place right near their work, but if an engineer cant, what hope is there for the majority of average income families.