Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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by submitting any feedback , you agree that your disclosure is gratuitous , unsolicited and without restriction and will not place crowdtangle under any fiduciary or other obligation , and that we are free to use the feedback without any additional compensation to you , and/or to disclose the feedback on a non-confidential basis or otherwise to anyone . 

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. OPTIONS: ['Contract by using' 'None' 'Limitation of liability' 'Arbitration'
 'Jurisdiction' 'Unilateral change' 'Choice of law'
 'Unilateral termination' 'Content removal'].