1. They did not falsely claim to be the OC creator, and they credited you.

2. This is a public forum. If you intend to make money off of it later, you shouldn’t be freely posting the images publically without any watermarking. I don’t know what jurisdiction would apply here on this federated forum, but to give an example of one of the most litigated jurisdictions, the USA:

Copyright exists automatically in an original work of authorship once it is fixed, but a copyright owner can take steps to enhance the protections. The most important step is registering the work. Registering a work is not mandatory, but for U.S. works, registration (or refusal) is necessary to enforce the exclusive rights of copyright through litigation. Timely registration also allows copyright owners to seek certain types of monetary damages and attorney fees if there is a lawsuit, and also provide a presumption that information on the registration certificate is correct.

Copyright registration also provides value to the public overall. It facilitates the licensing marketplace by allowing people to find copyright ownership information, and it provides the public with notice that someone is claiming copyright protection. It also provides a record of this nation’s creativity.

Perhaps you should register your works if you are serious about it.

3. Crossposting doesn’t re-upload, it still links to your original image. This is essentially someone finding your website, and admires an image, then share the link to the image. If you go to your profile and delete it, its also gone from the crosspost.

4. @cm0002@lemmy.world For news articles, links or even c/asklemmy questions, its totally fine. For OC content, I’d probably just try to not piss off people. Like it’s not morally wrong or anything, I get that you intent is just wanting to share, but like… if the original creator explicitly asked you not to… I’d just not.