Its always the way with monopolies. Private monopolies are worse than state because they fake a competitive landscape, using a fake approach to deal with fake issues. Multiple ticket types are there to encourage more users at off peak times, for instance. So you get into rediculous wrangles about when the lower fairs start (is it on the basis of whether the train arrives in London before 10, or is it based on when the train leaves Faversham?). Timetables are revised every few years to squeeze a bit more money out of the system by reducing the number of trains and staff.
And its getting shitter and shitter. If I need to be in my office or a lecture theatre by 9.00 I now have to get up at 5.00 in order to get the 6.18, which arrives in Victoria at 7.30. No later train gets me to Victoria in time to get to work. The 7.13 arrives at 8.29, but is regularly late, and I can't breeze into a lecture theatre with 200 students waiting, ten minutes late. Also this journey is timetabled to take an hour and 26 minutes. When I first moved to Faversham in 1989, there were two 'fast' trains an hour, each with a brake van where I could stow my mountain bike. The journey was timetabled to take an hour and five minutes, and typically was no more than 5 minutes late. I remember once oversleeping and still getting a train at 7.35 and being in the lecture theatre bang on 9.00. Why has my journey been timetabled to take 20 minutes longer now than when we had slam door trains? Easy answer - to make it harder for trains to be officially late (triggering refunds).
Add to that the 'no working toilet' issue, the freeloaders in first class, .... such joy to go to work....
Something to do with more trains running on an overcrowded network . But i am at pains to see where there are more trains !