[EXAMPLE PROPOSAL] Add rule to use digits instead of words for numbers over 9

[eveiscoull]

Rule proposal

Description

[Required] Describe the new rule in one or two sentences:

When writing numbers between 0 and 9, write them as words. For 10 and above, use digits.

[Required] Explain what issue this'll fix:

Digits below 10 can be misread as letters, such as 1 and I.

[Required] Show some examples of writing before and after the rule is applied:

1. Use words for numbers under 10
   • Before: "1, 2, 3"
   • After: "one, two, three"
2. Use digits for number 10 and above
   • Before: "twelve, thirteen, fourteen"
   • After: "12, 13, 14"

Proof

[Optional, but recommended] Show some examples where this rule fixed the issue described above:

1. The Australian government's style guide partly implements this for numbers 2 and above: https://www.stylemanual.gov.au/grammar-punctuation-and-conventions/numbers-and-measurements/choosing-numerals-or-words
   • This is to make visually scanning a document easier, as mentioned in the description at the top of the page.
2. The BBC's style guide also implements this rule for numbers above 9: https://www.bbc.co.uk/newsstyleguide/numbers
   • While it doesn't explicitly state the reason for this, it can be presumed that the same reasoning applies due to its prevalence in other style guides.
3. More examples can be found on the Scribendi article titled "When to Spell Out Numbers in Writing": https://www.scribendi.com/academy/articles/when_to_spell_out_numbers_in_writing.en.html

Other information

[Optional] If you have any other information, please share:

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