Moore’s suit said he took a polygraph test after the election which proved that he was telling the truth when he said he didn’t even know any of his accusers. My understanding of polygraphs is that they catch you only if you’re deliberately lying. If your beliefs are contrary to fact, the polygraph can’t tell that you’re lying.
I heard an Alabama journalist surmise that Moore brought this suit to rouse his supporters (mostly white evangelicals) to boost his plans to run for governor.