Oh dear - I completely agree and finalise a sale with @Jonjonjon , go to PayPal him, and literally the second before I hit Pay he messages to tell me not to bother because he's now sold it to someone else. I explain that this isn't cool, but I hear nothing back, so I perfectly reasonably down-rate him...and he then retaliatorally down-rates me in response for doing absolutely nothing except calling out his poor behaviour!! People, we act with integrity and honour here. This is not cool at all.
Moreover, I think we need a system to discourage retaliatory rating, although I recognise that that will involve more work for the site managers.
— Stochastic Instruments Ltd. —
Rethink Random//Perform Process//Create Chaos
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End the holocaust. Change our world with science.