I've been a regular, but not frequent, (ie. about once a month) user for about the last 30 years. My journey normally takes me from Wrexham General to Hawarden around 8.30am in the morning, returning from Hawarden on either the (approx) 4pm or 5pm train (although once or twice a year I travel through to Bidston). Although numbers have dropped recently (probably because of the total unpredictability of the service at present) there always seems to me to be a fair number of passengers using Wrexham Central at those times. More stay on the train to Central than those who get off at General. Making Wrexham General a non-stop in one direction inconveniences those wishing to change trains there - I would certainly miss my connection to Shrewsbury on one of the trains I regularly use if that change was made - and would be another irritant for passengers already disenchanted.
I don't know if it is still the case, but the times when I have bought a ticket from the machine at Central, it has always had "Wrexham General" printed as the starting station, so I suspect that those journeys were not included in the statistics for Central.
The suggestion of seeking to reduce dwell times at intermediate stations might not help that much. The present working timetable (info taken from RTT) generally shows a 30 sec stop at each station, so not not much flexibilty there, and I can't remember when I last stopped at a station where nobody got on or off, so making stations request stops isn't going to do much either.
Over the years I've had a variety of units working the line (first gen DMUs, classes 142, 153, 150 and now 230). The time table hasn't changed significantly in all that time, and only the 153s struggled to cope - poor adhesion on the hills when rail head conditions were bad. All the others have been able to keep to time, but not make up time. The 230s have shown that they can keep to time, so long as they work - the problem is reliability (and they are working on that) rather than suitability.
To my mind there will always be an issue whilst the present timetable exists, unless something can be done about raising the line speed, even if only along certain stretches. 30sec dwell times at intermediate stations and 3 minute turn around times at either end just doesn't work. If there is a passenger who needs assistance, or any other sort of inevitable delay, then that particular train will probably run late for the rest of the day.
I would be disappointed if Central closed and feel it would be an inconvenience for quite a few people. If it was, then the suggestion that has been made of having a bus doing a circular trip around key points in the city (particularly if it was free for train users) could be very useful, and not just for Borderlands passengers. So long as it connected sensibly with the trains - all of them.
Steve B