NO it’s NOT. And 1 minute isn’t TEN MINUTES! There is NO NEED to start each transmission of a conversation with your callsign. It hasn’t been 10 minutes, it is not HF where it is sometimes useful to use callsigns to indicate the communication path. Just have your brief conversation and give your callsign at the END. Since on a large linked UHF repeater system the general rule is to keep conversations under 15 minutes (it doesn’t count if you just “pause for a moment to see if someone wants to use the system”) If someones “reason” for constantly giving their callsign is “habit” because they are an avid HF operator then maybe they need a caretaker… do they try to “shift” when driving an automatic transmission vehicle out of “habit”? Noooo so if they ID on a 440 conversational system it indicates they don’t know where they are and what they are doing right?