The MathML example here is... Definitely not TeX-quality. At least not in my phone. It looks really janky.
That depends on the font. If you supply the Latin Modern font with your website, MathML equations will look exactly like in LaTeX.
Ah, I (the article author) am at fault here, for not pointing this out. Things looked fine in my testing because I have the LM font installed on my system.
ajkjk · · focus · HN ↗
xigoi · · focus · HN ↗
leephillips · · focus · HN ↗