Originally Posted by DVS Hardscaper
I believe they call it a "lug". This is what gives each course of block a 1/2" batter.
(and in my opinion, helps keep the block from sliding forward...)
Believe me it has every bit the job of holding things in place. If I remember to one day, I'll put up a pick of what happens to the wall when lips are removed because the installer wanted a vertical wall instead. Think reverse batter. I can see the advantage in that design which regards to inside radius curves.