I think the rules are pretty clear in that plagiarism warrants an immediate ban.
Writing a welcome message.Plagiarism: If you copy some text from somewhere, then you should have a good reason for it, and you must link to the source. Doing otherwise is plagiarism. Changing a few words around doesn't matter. If we find that you plagiarized, then you absolutely will be permanently banned, even if we find it years after you did it.
Warning: Anyone caught copying other users' posts or plagiarising content from elsewhere on the web will be immediately permabanned. You shouldn't need a warning to know that this isn't acceptable under any circumstances.
OP deserves a second chance.
OP did not have enough net contributions before this ban to be given a second chance. You did not understand anything about second chance. OP can ask for a second chance with this appeal topic but chance of getting it is zero.
Alternatively OP can appeal there
Second chances.Before that, read this post.
If you think that a ban should be ended, make your case in a new topic from a "good for the forum as a whole" perspective.