Writing about race and religion brings out the trolls; Via Meadia‘s normally urbane and civilized comment pages have been invaded recently by two groups of posters. One wants to argue simultaneously that anti-Semitism doesn’t exist and that it is caused by the bad behavior of Jews. The other wants to turn discussions of urban policy into an argument over alleged genetic differences between the races. We have already trashed many of the worst of these comments. Readers can imagine what some of them were like.This is not about censorship; it reflects our concern that on the web as elsewhere bad discourse drives out good. The internet is a wide and welcoming place and I am sure there are large and capacious Troll Reserves on the web where these points of view are celebrated and welcomed. Via Meadia does not want to close the Troll Reserves down, but neither do we wish to become one.All future comments on the joys and justifications of anti-Semitism or the alleged genetic inferiority of any race will go immediately to the trash.Since the recent influx of racists and anti-Semitism apologists significantly lowered the tone of the comments site, we will be making extra efforts to enforce our longtime policies about courtesy in comments. Comments deemed lacking in basic courtesy or decency will be amended or trashed at our discretion.