Graham, should the "Help Point" have been sufficient to answer these queries you encountered, if they had pressed the button?
In one case "yes", in one case I doubt it, and in the third place the potential customer was looking for a timetable of trains to Bath and I think it would have been impractical for the person to have given him the details he wanted - a diagram / chart was really needed and I don't think the call centre staff can send an image to the screen can they?
Obviously it's a reassurance thing, so in the case of somewhere like Melksham, do signs need to be clearer as to what the help point does? Afterall, I didn't realise it connected to a "human" until someone thought it was amusing to press the button, run off and I could hear a "hello hello?" coming out of the speaker.
Possibly ... the help point is excellently situated for people waiting on the platform ... we could really do with one of the boards off the platform telling people that (a) the help point is there, and for general enquiries as well as for specific of current journeys and (b) it's all right to get on the train without a ticket and buy from the conductor.
My particular interest in this question was not about people coming to the station for a service that happens to be due at that time, but rather people coming to a station when no train's due looking for general information, or when a train (happens to be) due, but seeking information for future use.
... and fewer people than in the past even attempt to go to the rail station for information ...
I was very surprised at how many there were in a short period today at a pretty sparsely served station, and thinking about it I often run into extra people who just happen to be passing by .... except they're NOT passing by as it's at the end of a cul-de-sac. Wondered if there were any figures / stats.