This is unfortunately true. I think most of it is safe (e.g., my stuff is 100% safe 
), but there were instances where stuff ripped off from games were sold (or given away in free for the month). And if you use those things in your game - you are liable for it if someone sues you. As @Uncle_Fred said it’s even more complicated with AI systems, where you don’t even know what data was used to train it outright (e.g., Adobe Firefly or Midjourney) or you know it’s been trained on all the data, including data that trainers didn’t have license for (Stable Diffusion). And aside from (AFAIK) Japan, the ‘fair use’ excuse of trainers is being disputed in courts at the moment or even said it’s outright infringement (UK, https://twitter.com/ednewtonrex/status/1753231242127081595 ).
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