Drive home the poor whore mother and the dumb jokes. This really pops their crack pipe.
I would also recommend doing these in open comment boards. Not only are they good for a laugh, they should help you avoid immediate bans.
Most of the time they won't know what to say back because their dad is not coming back from the store (he is in prison or a graveyard), their house is full of roaches (or they have family that does), and likely are either on or knows someone with EBT / SSI gibs.
If you have any good "yo momma" jokes (especially detrimental ones to blacks), feel free to drop them here.