What the hell does ≡ do, anyway? 14 years ago
Context matters.
Also, there's also the simple "If Apple, Twitter and Facebook do it, bad luck, we gotta play along" rule.
P.S. Starting with "While I may be far from a UX guy" doesn't seem like the most positive way to start an article.
P.P.S. Somewhat flattered that oursay.org was used - somewhat badly - in the final example.