i do feel a moral responsibility for some of the loss: the value of funds in my account, my credit limit and perhaps a bit more, but not 92k! it was my responsibility to monitor my positions, but ig, like all extenders of credit, have to ensure that i am in a position to cover any credit extended. i didn't ask for 92k of credit, they didn't vet me for it, and i didn't want it - but i got it anyway!
there's no way i should feel a moral responsibility for losses incurred as a result of ig not monitoring what credit they're advancing. ok, i should've been monitoring my positions, but we're not all full time day traders with constant real time access to prices, so i put a trade on thinking that, worse case scenario, while un-monitored, the trade could go against me, the funds in my account would be wiped out and i'll owe 5k + maybe a bit more, but not 85k more!
a waived deposit limit is apparently deposit that you don't need to have in your account to be cover a deposit requirement on a bet - seems sensible in a credit crunch!
re the case of the guy who lost 2m betting on the horses etc - he told the betting firm he had a betting problem and not to accept bets from him, they did anyway, he lost and then asked for his money back. he put the money down up front, so the bets were on cleared funds. the issue was with whether the betting firms had a moral responsibility to reject cash bets from him, a bit like saying MacDs should refuse to serve fat people.