As these are impossible to find at the moment as trains are sold out
It is not hyperbole, but my own experience...I am pleased to hear you have found great value advances, although some of us are unable too. This is not propaganda.
It's hyperbole to suggest that it's impossible to find advance tickets in general, as you suggested in the first quote above. I'm not arguing that
some trains are sold out of course! — that's always been true, and it's clearly now got a lot worse, which is definitely not a good thing
When I was booking this journey recently, some of the trains (especially GWR ones)
were sold out, but there were enough that weren't that I managed to book the journey satisfactorily. I can understand that it must be extremely frustrating if you're trying to book a longer journey or with more restricted timings,
As for the quota system working, it was utterly pointless on the train I used as the walk up and buy ticket passengers vastly outnumbered the few who managed to buy a ticket online beforehand. The quota for pre booked tickets may have well not existed.
Not good at all. That suggests there's a fairly fundamental problem with the enforcement of compulsory reservations (i.e. there is no enforcement). I'd definitely agree that the current situation looks like the worst of both worlds … deterring online ticket purchase by being fully booked
and being rammed when it actually runs because “fully booked” is meaningless on the day and many passengers do not have reservations.
If I do end up experiencing a situation like that, in which I have booked a seat on a train with compulsory reservations (which are clearly being limited in number to make it possible to prevent overcrowding), and it turns out that those aren't being enforced, and the train is sufficiently crowded that social distancing is not possible, … well, it's not going to encourage me to choose rail as my mode of transport again any time soon, despite it having previously been my preferred option, when practical. I have a couple of trips over the next week, it will be interesting to see how these feel.
The quota system is not working as intended if a false scarcity is created.
Exactly, I totally agree with this.
The only alternative seem to be for us to buy walk up tickets from a machine, or vote with our feet and not travel at all - which is what we shall be doing.
… yes indeed. What should be happening is that the first option is not available (in other words, if we take the limits at face value as a “true scarcity” in the sense that it is by design, to create an upper limit on passenger density, then that system needs enforcement to work). Since it seems that it is possible to travel on a “fully booked” train, without a reservation, and without any penalty, the “compulsory reservations” are indeed pretty pointless as a means to reduce overcrowding on certain trains, since it's possible to travel on those trains without a reservation at all. It might reduce numbers marginally, but it's not going to keep them to the chosen limit. Like you, if I can't get the booking, I'll choose a different way to travel (probably by car).
[edited for typo, no other change]