How brave you are.
And no, that's not how that works.
If you don't want to be credited, that's when you mention it. Silly little boy.
So let me tell you how it works
You shared the content, if uploader watching over the thread is not available, someone will report your post to updates, then any other uploader, who's not even watching the thread, mirrors your post to OP and closes the report, that's it.
If you wanna credit, you post directly in the thread and people will thank you.
If you wanna stay anon, you DM uploaders to post it for you.
Nobody claims anything, people in the thread are gonna know it's from you if it's just a mirror of your post.