The Big Weiner is protective of his frequencies, he had to fight with the FCC for decades to get them. He'll rent the loon an hour for fifty bucks, like he does all crazy preachers, but no poaching.
When WBCQ was in it's first year, a couple of guys hijacked the frequency just after sign-off. They were running some serious power and running a parody of WBCQ. If it wouldn't have been for one's pronounced southern twang they'd have pulled it off. I wish I'd had sense enough to record it.