cool, though he might not even come back, but someone could PM him and ask.
The person being repped cannot be maxed out though, there might not be any change in their points and we wouldn't know if it was because of them beng max or because repped by a negative user doesnt add points.
Another question, all reps given by users under 300 posts show up as grey. Does this affect your score?
A grey badrep doesn't give any points, I believe. I got one once and thought my points didn't change (though I can't swear to it, the last digit might have moved). A grep goodrep I don't know, only ever got one that I remember and I got another at the same time masking its effect.