Required - no. If equipped, then used properly, please. Brief, I mean brief, position calls. Where I fly there are three or four airports in easy range that share CTAF frequencies. On a nice, sunny Saturday, CTAF is a garbled mess of long winded position calls (podunk traffic, cessna 123SP 15.2 miles to the southwest we are going to cross midfield at 3000', fly 1.3 miles to the west, then do a teardrop entry for the left downwind runway 33 podunk), people saying hi to that tail number they met at that fly-in last year ( hey, bob is that you up in 123SP? Haven't seen you in a while since we met at that pancake breakfast at podunk last year... How's the wife and kids?), and primary students making a mess of things (Um.... cessna 123SP is 10 miles to the east.... no west of podunk.... wait... podunk traffic, cessna 123SP is 10... no 9 miles to the east.. yes east inbound for landing... full stop landing.... full stop taxi back landing............................ [mic still keyed].............. oh, podunk)..
Anyway. I have taken to tuning most of it out and using the good ol' method of looking outside and then supplementing by using ADS-B IN to avoid mid-airs these days.