Your signature violates the Signature & Avatar rules.
The violated rules are:
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The entire size of your signature should not exceed 400 pixels wide by 150 pixels high. Large sections of text that extend the height well past this will be removed. Continued abuse of the size will result in your rights to have a Signature and Avatar being removed.
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Total size of the images contained in your signature or avatar should not exceed 50 kilobytes for the avatar and 70 kilobytes for the signature.
Signature and Avatar rules located here!Please change or remove your signature.
~Best Regards.