[semiquaver]

Hmm, this is a case where HN’s title mangling changed the meaning of the title. Lower case delta (δ) is used intentionally. I don’t think HN should automatically modify the casing of non-ascii chars.

[setopt]

Even for ASCII chars, nomenclature in math and physics is usually case-sensitive.

[cwillu]

Email [e-mail] and they'll fix it.

[airstrike]

The submitter has a grace period of a few minutes to edit the title after submitting, so there's no need to change what HN does

[realitysballs]

True, but wouldn’t it be better long term if website automation didn’t create unintended new meanings to Titles? title’s matter

[airstrike]

Only if you assume it doesn't ever work as intended.

[throw1234567891]

indeed, titles matter