One needs to be more than "reasonably skeptical" and merely not "low intelligence gullible" to be a competent TT judge--it requires skill, experience, and understanding an LLM's weak spots.

And the "customer service voice" you see is one that is intentionally programmed in by the vendors via baseline rules. They can be programmed differently--or overridden by appropriate prompts--to have a very different tone.

LLMs trained on trillions of human-generated text fragments available from the internet have shown that the TT is simply not an adequate test for identifying whether a machine is "thinking"--which was Turing's original intent in his 1950 paper "Computing Machinery and Intelligence" in which he introduced the test (which he called "the imitation game").