There are ways around it, though - even if illegal.
Our county tips turn away any commercial vehicle - which includes an odd-job person with a Fiesta van, even if that doubles as their only personal household transport, with their own domestic waste - but there's no restriction at all for non-commercial vehicles.
We have friends with a VW minibus - they refer to it as 'the van' because that's essentially what it is: a van with windows and seats - but the back two rows of seats are fully removable.
They use it for their own household waste and when helping friends and family with their own (household) waste; however if anybody were thus inclined, it wouldn't be difficult to buy a similar cheap old vehicle, leave it unmarked, and charge many desperate people on an 'ask no questions' basis to take it all to the tip as free household waste, time and time again.
Not that I'd condone this, of course; but if councils are not delivering one of their most basic essential services for which people have already paid council tax, I think you could sympathise with the people's predicaments.
It's ironic that, if a rogue trader took people's money in exchange for agreed services and then didn't provide those services, the council trading standards would pursue them; yet in this case, effectively by the same logic, the council are the rogue traders!