Three kinds of filler, treated differently
Pure hesitation — “um”, “uh”, “er”, and their stretched forms — is almost never meant, so it is ticked by default.
Hesitation phrases like “I mean” and “you know” are ticked only when the surrounding speech says they are padding.
Context-dependent words — “like”, “actually”, “basically”, “literally” — are listed but never ticked for you. Removing “like” from “it looked like a bug” produces nonsense, and no confidence score is worth that risk.