DynamicSpirit
Established Member
I expect quite a few of these extra reservations are due to the fact that some of the advance fares are very cheap (as you automatically get a reservation with an advance ticket) although I can't be completely certain of this as it's also possible that people with walk-up tickets are for some reason choosing to make a reservation on a specific service when previously they would not have done.
That seems very likely to me. I would think you can be fairly certain that if regular travellers regularly find that almost all seats are taken, then many of those travellers, even when buying walk-on fares, will respond by reserving seats themselves.
(Example in reverse: I often travel from London to NW England, almost always on walk-on fares. A few years ago trains were usually packed out and as a result I always tried to reserve a seat if I could. Now that many Virgin services are 11 car and in my experience therefore have plenty of seats, I rarely bother. There's no point going to that extra hassle if I'm expecting to find a seat easily anyway).