Best uses for styled numbers
Styled numbers are useful for birth years, jersey numbers, lucky numbers, dates, countdowns, and short profile lines. They work best when the number is short.
Keep dates clear
If the number is a date, make sure it stays clear. Fancy styles can make 1, 7, and 0 harder to tell apart in some fonts.
Use numbers with names
You can mix styled numbers with a username or gamer tag. If the letters are already very fancy, use cleaner numbers so the full name stays readable.