There was a precedent. The judge didn't rule that a thumbs up is a legally binding signature in all contexts. Here, the farmer have already accepted contracts a

There was a precedent. The judge didn't rule that a thumbs up is a legally binding signature in all contexts. Here, the farmer have already accepted contracts and delivered with simple "yep" or "okay" answers, so the customer reasonably thought it was the same with a thumbs up emoji. Assuming it was legal for teenagers to sign contract for work in porn (that's what "AV" means for the uninitiated), which is most likely not the case, then if she performed after answering "yep" or "okay", then one should expect her to perform again on a thumbs up. The "soul selling" aspect is another matter and the contract may be deemed invalid on these grounds, and if she were asked to do more than the usual performance, the ruling may change. Judges are not just robots running code, they care about context.