well we have clearly different standards.
As I see it VM already have protocol shaping and STM. They sell an unlimited service, a consequence of that should be to have some high usage and to deal with it.
If these high usage are abnormal as claimed so a very tiny %, then adding capacity from normal revenue should be a non issue, and is a non issue when enough people complain as then upgrades happen, especially when neil starts getting emails concerning issues. You said it yourself having worked in the isp industry that working on fixed contention ratios isnt practical, its dynamic all the time and instead just work on visible contention. Yet in this scenario you think it right to stick to a rigid contention ratio that might suit an OAP area where people just check their online banking

Whilst VM's prices are low they are not that low, they high in comparison to xDSL.
I never have said endless upgrades should be done however I do say issues of oversubscription should never be ignored which seems to be what you promoting, you seem to have no issue with users getting a service not as advertised or fit for purpose as long as your not affected of course. For some reason you also think its isolated to student areas. whether its an upgrade of capacity or downgrading of package spec it doesnt bother me, what bothers me is oversubscription.
We have their website on order pages showing high typical speed figures, this is misleading to any oversubscribed area, claims its good for gaming, again any oversubscribed area misleading, protocol shaping and STM which supposedbly are to control so called abusive users. With all this you still giving VM pity. AAISP is a prime example of how to deal with congestion, take the pain initially with capacity upgrades to fix the problem in a timely manner, if upgrading is not viable long term then respec packages to make it viable. It is actually quite simple. But VM seem to have an allergy to raising prices or scrapping unlimited use. They are addicted to misseling to a portion of their userbase and then claim pity for it. I dont like people who upload 24/7 anymore than you do but they are doing nothing wrong in regards to the service sold to them.
The fact VM treat the majority of performance related complaints as faults rather than saying tough luck contention suggests they know full well what they playing at but wait till as late as possible to fix.