The fact that I do you a service and you, who have promised to pay me next week take 4,5, 10 weeks to pay me or more, seems to me at least morally questionable and at least makes me doubt whether I should leave him negative feedback as The Parmacist has done.
Where exactly is your doubt here? It looks like he already had red trust a couple of years ago and it was revised to neutral... Second chances are great and all, but this one's blown bigly and seems like proven "high risk" behavior.
It's not so much doubt as insecurity, and more so now that I'm in D2, I don't want to rush. I opened this thread to see what people thought but since I can change the feedback to negative at any time, it looks like I will end up doing it.