I hadn't seen that gardening site, but I was impressed that one of my regular folks at www.DirtDoctor.com (dshall_san_antonio) posted a very good and comprehensive post. I always get annoyed when the petrochemical apologists get in there and try to put down organic as either 1) ineffective or 2) just as dangerous as the chemical approach. That just isn't true. But the person who recommends 20% vinegar is wrong. It is way too strong anything over 10% is overkill. And it shouldn't be the acetyl vinegar that is a petroleum product.
And the straw man introduced--"you don't use synthetic chemicals--you don't paint your house, blah blah blah" totally ignores the nature of the chemicals and the stability over time.

I've tried the "lasagna" method--newspaper and mulch over the top of the turf--it works a little but you have to keep redoing it and in the end the main effect is that the Bermuda has pooled itself (root-wise) under the surface of the newspaper and is a little easier to pull out. I'm hoping to eventually end up with a yard with distinct areas of dark shade alternated with well-tilled beds that I can pull the grass out of. And hopefully get buffalo grass going instead of Bermuda.

SRS