Yes even if I can understand them it matters. We should correct ourselves and enable better communication moving forward. I would also say that it too is rude,

Yes even if I can understand them it matters. We should correct ourselves and enable better communication moving forward. I would also say that it too is rude, arrogant, and makes you look like an asshole if you are using words incorrectly and then defending that usage. One must conclude that either you have too much ego to correct yourself or you are intentionally misleading people. Why do you see this among engineers frequently? Well because it's the job of an expert to be concerned with nuance and details. The low-level in fact. This requires a high precision in communication too. The back and forth you see as bickering also ends up getting those details communicated. The reason being is that much of what's being intended is implicit. So the other approach is to use a lot of words. Unfortunately when you do that you are often ignored.