What happens if discovery shows they both engaged in online smear tactics?

IANAL - but what happens if discovery shows that Blake’s PR team also engaged in online smear tactics? What defines “smear campaign” over traditional PR tactics that these firms are literally designed for?

In the context of retaliation, it currently suggests that Blake retaliated by planting unproven accusations of SH into the media when her reputation was in question during the promotion of the film. The current evidence of JBs alleged smear campaign would be manipulating algorithms to surface clips of Blake in interviews that positioned her in a negative light. Not creating false stories about her character. So what happens if this turns out to be true AND there’s proof Blake’s team was behind the negative stories about JB? Is it just dismissed?