Well, like I said, I made the software (hopefully that counts me as an expert user?) and I still think it's handy to have them there. For example when you focus the Volume parameter of a Play Sound action... is it in dB or a ratio? Positive or negative? Honestly, sometimes I even coded it and can't remember what I did. The tip clears it up: it's dB attenuation, so ought to be negative, or 0 for full volume. That kind of thing is always useful IMO, whoever you are.