Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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you further agree not to ( 1 ) upload any content that contains software viruses or is designed to interrupt , destroy , or limit the functionality of any equipment or services , or that contains other harmful , disruptive , or destructive files or content ; ( 2 ) use or attempt to use another user 's account without authorization , or impersonate any person or entity ; ( 3 ) harvest , solicit , or collect information of other users for any reason whatsoever , including , without limitation , for sending unsolicited communications ; ( 4 ) post , advertise , or promote products or services commercially , or upload any content that is advertising , promotional material , junk mail , spam , or a contest or sweepstake , or that furthers or promotes criminal activity ; or ( 5 ) use the fitbit service in any manner that , in our sole discretion , is objectionable or restricts or inhibits any other person from using or enjoying the fitbit service , or which may expose us or our users to any harm or liability of any type . 

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