[ghusbands]

Your site still says "HOW TO ADD ALMOST EQUAL TO IN HTML? Use an HTML entity, a decimal code, or a hex code."

That is incorrect. As you say, you should just write the character in your HTML and ensure it's served with the correct encoding. If it's just for legacy cases, debugging or such, say so on the site.

[yarlinghe]

Agreed. Updated the HTML section to recommend writing the literal character + UTF-8 by default. Numeric refs/entities are now explicitly framed as legacy / edge-case references.