I personally feel counting carbs VERY important and reading labels when I shop is VERY important.
Carbs tend to creep in when you do not expect.
Root Vegetables for example should be avoided. Corn should be avoided.
Just eating meat and vegetables is not going to guarantee weight loss.
A scale is a tool plain and simple..just as a measuring tape.
Many...including me have found even when we are not losing on the scale...we are losing inches.
The scale works for many of us as a motivation....others not so much.
Just my .02 cents.