Good. You can come and collect all the crab grass and ragweed that grow rife in my yard if I don't mow/weed. You can have as much of that stuff as you like.
Ragweed is Ambrosia...
Good for nausea and menstrual cramps... The root as a tea is a fair laxative...
You've probably got burdock, plantain, and dandelion too... good eats... for free.
I don't mind you have a lawn, I really don't. Just seems a pity to me to put in all that work and pay for the spraying and all, when a typical 1/2 acre could provide all the greens, vegetables, and many medicines for the family that lived there. And not too long ago, that's what they did.
And as an aside, cultured suburban lawns, being a relatively new thing, cannot be what the article attests.