Arguments against my position

Employees' postings displaying a poor attitude toward customers or
portraying vulgar, promiscuous, or racist tendencies may also portray the company in a bad light. (Hunt, 49)


Many employers use social media themselves, for job applications and university admissions, as these digital platforms are ideal for information-sharing, creating user-specific content and facilitating collaboration between people.  (Jeske, 536)


The first reason that motivates employers to turn to social networking
sites for hiring is their wish to avoid civil liability for negligent hiring (Lusk, 718)

Sources

HUNT, RYAN J. and LARA L. KESSLER. "Wanna Be Friends? The Potential Impact of Lifestyle Discrimination Statutes on Employer Facebook Policies." Journal of Legal Studies in Business, vol. 18, July 2013, pp. 45-68. EBSCOhost, libproxy.adelphi.edu:2048/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=bth&AN=87587222&site=ehost-live&scope=site.

Jeske, Debora and Kenneth S. Shultz. "Using Social Media Content for Screening in Recruitment and Selection: Pros and Cons." Work, Employment & Society, vol. 30, no. 3, June 2016, pp. 535-546. EBSCOhost, doi:10.1177/0950017015613746.

LUSK, RACHEL E.1. "Facebook's Newest Friend--Employers: Use of Social Networking in Hiring Challenges U.S. Privacy Constructs." Capital University Law Review, vol. 42, no. 3, Summer2014, pp. 709-762. EBSCOhost, libproxy.adelphi.edu:2048/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=ofm&AN=100666405&site=ehost-live&scope=site.