Besides resolutionblaze's input, note that there are other problems to consider with posting art, like the rampant extremism on Twitter (i.e. harassment) and the lack of moderation tools to combat such. In this case I'd say Bluesky's benefits outweigh its lack of anti-scraping.

Webscraping is such a double-edged sword like that. You can use it either for cool stuff like statistics, trends, and preservation, or bad-faith stuff like genAI training or denial of service attacks This stuff is pretty out of control, but let's keep our heads up and keep shunning genAI