My sheet was stolen.

[Alefy San]

About a year ago, I released this sheet https://www.spriters-resource.com/snes/m...et/133257/ and sometime later I updated that sheet. Also last year, I searched for "mario's time machine sprites" and one of the first images that comes up is this: http://www.mariouniverse.com/sprites-snes-mtm/ . If you click on "Misc" on that site, you will noticed they have stolen the first vearsion of my sheet. I usually don't like to add credit to my sheets, and they have take advantage of that.
I just don't know what to do, even 1 year later.

Edit: I never posted on the forums before, and I think I've forgot to put a title, oops.
Edit 2: Yeah, I really don't know how to edit the title. :/
Edit 3: Finally, changed the title.

[Barack Obama]

Mario Universe grabs sheets from all over the place and throws them on their site, most of it is completely outdated and low quality.

They don't change the contents of the sheets and leave credit tags intact, though. Therefore your sheet was not really stolen, since they don't claim your efforts as their own. These people just didn't ask you for permission to have your rips on their servers.

I guess they have stuff from me too, but I don't really care. If it bothers you, try to contact them and ask them to remove your sprite sheets: https://www.mariouniverse.com/contact/

[Alefy San]

Mario Universe grabs sheets from all over the place and throws them on their site, most of it is completely outdated and low quality.

They don't change the contents of the sheets and leave credit tags intact, though. Therefore your sheet was not really stolen, since they don't claim your efforts as their own. These people just didn't ask you for permission to have your rips on their servers.

I guess they have stuff from me too, but I don't really care. If it bothers you, try to contact them and ask them to remove your sprite sheets: https://www.mariouniverse.com/contact/

I didn't knew it. I am just a little upset because they don't gave credit, because my sheet doesn't have a credit tag . I guess I'll try to have a credit tag from now on, so next time they can give credit.

Edit: After thinking for a while, you're right. It's not me who created those sprites, I just ripped it, therefore I can't claim credit, specially if ripping is my hobby. I guess it's better to not have a credits tag.

[Barack Obama]

Same here, my name derives from a former US president and yours is a meme. We both have avatars from random anime/vg franchises and our rips are a bunch of copyrighted stuff from other companies.

Most of the other rippers have the same perks and that's not really a foundation to build up fame or whatever they think to accomplish when using credit tags. In the end, it's just a hobby.