If no license is indicated in an artwork/software the implied license (it is not required the indicate a license) is “All rights reserved”. This post counts as a derivative work, the author have the right to allow/disallow it.
Outside of legal wording, when making a derivative work it’s nice to at least give attribution to the original artist or citing the source of the original work.
Lemmy.zip is down every fucking weekend because of these dumbasses. What Tebas is doing should be illegal, I’m so tired.