so, uh, you probably weren't aware of this (I know I wasn't until fairly recently when I made a similar comment and a jewish friend pointed this out) but many jewish people consider speaking casually about how the new testament is good/ the old testament is bad to be pretty offensive. The gist I think of what my friend was telling me was that if I took the time to understand the jewish scripture, all of the stuff about loving your neighbor, feeding the poor, etc... is already in those jewish scriptures that prefigured the new testament- I mean, that's just scriptural interpretation, which I am not really qualified to get into - but the offensive bit is that casually dismissing the old testament as bad while praising the new testament as good can come off like saying "the religion my ancestors had has a more moral holy book than the religion your ancestors had" and it's pretty easy to see how that could give offense.
(I mean, I'm not a bible scholar; just... it was, you know, one of those times when I unintentionally gave offense, and seems like something you should be aware of if you are trying to avoid flame wars.)