Though I tend to agree with you, OP is rightfully surprised by getting negged by this moron--and it looks like intrader is starting to hand out negs even more freely, and I'll be damned if I can understand why.

The dude is definitely abusing the trust system and if I had to guess his personal life probably isn't going too well, so he has to resort to this kind of trolling to relieve some of the anger he's got bottled up. [/armchair psychiatry]

I wouldn't worry too much about this schmuck, OP.  He'll probably neg me and anyone else who takes your side in this thread.  Not much anyone can do about it.