if you want to support an incredibly misogynistic outfit fronted by a dumb asshole who's got a lock on most metal show promotions in the midwest (his "territory"), a frontman who actively blacklists kids he "doesn't like" from going to these shows, threatening physical assault on them and sometimes actually suckerpunching them in public places, then by all means, go to the fucking show.
and yes, i believe more than one member of slipknot founded anal blast, and could possibly still be active in it.