Kick Online Entertainment appears to be based out of Australia so I guess the fine is applicable.
4chan however is based out of California used to be in Texas AFAIK and California has not yet passed these age verification laws but the writing is on the wall. California hosts roughly 60% of porn sites in the US. At least 25 states have passed them [1] and it's just a matter of time before there is a federal law. Had 4chan not left Texas they would be affected.