Who said God had to be nice to anyone? I was just reading Gumby's thread on 'a big old lie' he'd found in the bible.
As far as I got reading, folks were discussing Jehovah killing everyone most of the time and I suppose threatening to do again in the future, according to the WTBTS. But why do we expect God to be nice to people? Haven't we already noticed that he just isn't. Apart from making the sun shine and rain fall on the righteous and unrighteous...his part in the old Testament tended to included a serious amount of slaughtering, including the innocents.
So why do we still expect niceness? Surely we only saw niceness from Jesus.