Yes, I don't think they would do that for a moment -- easier to just let things lie. But I don't think the film distributors suing PRH, or someone saying the medical claims in TSP caused him actual harm, is at all likely either. (Those were suggestions made in an article linked earlier.)
@Freshsocks, I was about to say that declaring yourself bankrupt lasts for a surprisingly short period of time, and Googled to find how long that was in the different parts of the UK (12 months, usually, so my point was going to be that if they'd declared themselves bankrupt at the time of the repossession, it would have been discharged long since by the time SW sold TSP and needed to set up as a company), but came across this on the Citizen's Advice website about which debts bankruptcy absolves you of, and which not:
https://www.citizensadvice.org.uk/debt-and-money/debt-solutions/bankruptcy/how-bankruptcy-affects-you/check-which-debts-bankruptcy-covers/#h-debts-you-ll-still-have-to-pay
Loans secured against your home are not covered by bankruptcy, so even if they'd declared themselves bankrupt before the repossession, it wouldn't have saved their home.
And this:
If your home is repossessed and sold, but doesn't raise enough money to pay off your outstanding mortgage or any other debt secured on it, the remaining debt will no longer be secured. This means you'll be released from it at the end of your bankruptcy. The remaining debt is called 'mortgage shortfall'.
So it looks as if the people who bought the debt had no further claim on the Walkers after the house was sold, even if the mortgage lender recouped all the money raised by its sale? And perhaps for all SW's posturing about them choosing not to become bankrupt being somehow public-spirited, it was purely because it wouldn't have helped at all?