So CivitAI is a library where people upload custom models, LoRA etc... But no training data; custom model are full Stable Diffusion model finetuned on something

So CivitAI is a library where people upload custom models, LoRA etc... But no training data; custom model are full Stable Diffusion model finetuned on something, LoRAs are also weights but they are not the full checkpoint, with LoRA you are able to add knowledge to the model that do not required the entire model to be finetuned (for example adding a character). If a character is popular there will be already many LoRA trained on them (like the characters of Konosuba) >So the advertiser probably just downloaded (base model) + community-sourced LoRA of the Konosuba anime, and then used a prompt to create the advertisement? Yes.