The gratuitous mention that a 'Zionist' [sic] condemned the attack, and the implication that it is something unusual. In actual fact the German Jewish community tends to be very outspoken about stuff like this - for some strange reason they feel strongly about neo-Nazis.

That's followed by vague insinuations that shadowy forces are behind the skinheads.  When someone with antisemitic opinions brings up Jews in connection with something where it isn't particularly relevant, then starts making weird suggestions about how there are secret forces behind the phenomenon under discussion then it is pretty clear what he is thinking.

I suppose I should do some background research on all posters before responding to them in the future?

No reason to do that. Fortunately racists are far and few between on this site, and one can generally assume that posters are not racist unless proven otherwise. In this case it is pretty clear (see the comment I posted right around the time you posted yours)

Last but not least, today a zionist, Anetta Kahane, went before N-TV to pull a boo-hoo-hoo. Since when do they even so much as care for black people ? (...)
If the poor guy was just a "normal" black he would never have gotten all the attention. This guy will serve as another conspicuous example of how bad jews are treated.

and not see it for the anti-semitic slur it is, beats me. But, as you say (conveniently shoving the responsibilty on to "you", meaning, supposedly, everyone else at ET who need to "face" these "problems"), you're not going into any of that "racism/antisemitism thing".

Read name's diary again. Read Ritter's response to its attack on Germany. Read name's references to Jews again, without preconceived ideas about ET and anti-semitism this time. And see why this was not a diary to recommend.