You didn't use those words, but collapsing an economy deliberately so you can profit from short selling shares is a traditional evil act. You profit from the hardship of others. It is not something that you do whilst claiming to be one of the good guys. Honestly, mate, saying that you didn't claim the Tories are evil here is akin to describing a man rampaging through a city randomly shooting people, and then insisting you never actually called him a murderer

You'll have to remind me where in this thread I said this was a good thing that I supported. I do wish people would stop inventing my views and then arguing against them. I am, as I have said a number of times now, a Lib Dem. I have voted Lib Dem in the last two elections (at least I would have done if my Lib Dem candidate hadn't been withdrawn in favour of the Green Party in the last election). My argument was, and I believe it was extremely clearly written, that this is merely end of negotiation theatrics. It will not happen, there will be a deal. My personal view is that even the threat of it is a poor idea and has an impact upon national reputations, but such is life.
As I have said a number of times, and indeed flash has said, it's negotiation tactics. An extra lever to move a deal into place. The EU can say "we may have lost a bit of ground on fishing, but we ensured peace in Northern Ireland" even though it was never really at risk. The EU loves this kind of argument. You will observe that EU proponents repeatedly insist that the EU has apparently prevented Europe descending into another major war, despite there being no evidence whatsoever that any of the members had the slightest inclination to start one.
Are you a Diplomacy player or not? Without leverage there is no influence. Once the money has been paid the leverage is gone. The donors donated to keep Corbyn out, and they succeeded. End of influence.
Now, you could possibly argue that the promise of future money would provide some leverage (not a lot, of course, as these kind of promises aren't worth all that much). But then you have to weigh the benefits of extra cash against the cons of making a massive public fuck up, and it ain't worth it. It ain't even close to being worth it. We are talking jumping off a cliff to get to the beach faster levels of not worth it.