It's cringy because it's unprofessional and amateurish. Not to mention that you only have a certain amount of control over your content and hence your SEO. For

It's cringy because it's unprofessional and amateurish. Not to mention that you only have a certain amount of control over your content and hence your SEO. For example, how would you like it if "beyoncescock" or "dildoreo" (both real usernames, by the way) were to reblog your serious announcement from your serious company? Now those usernames are associated with your company's name when you search for it on the web.