If you list a brand name in any of your social media accounts, but then incessantly complain about the brand (even if it’s vague) or attack the brand, you look disloyal. Particularly if you don’t offer solutions.
If you are a student, especially one in PR or Strategic Communications and associate with a brand (club, organization, sports team, volunteer position, etc.) in your profile, bashing that brand could be a fatal career error for you.
Potential employers are going to search you and search deeper than Google. They’ll check to see if you understand privacy settings on Facebook and have Twitter open. Then a potential employer will comb through your tweets and wall posts and see if you complain about any brand you associate with and if you do how specific or damaging the complaints are. They may check cached pages to see if you’ve removed tweets or posts.
Ask yourself, if I associate with this brand in my profile, shouldn’t I try to represent it well, as I would a client? Won’t a potential employer view my bashes as detrimental?