Earlier quoted context omitted.
Number One, Pipe Character, lower case L, upper case I, zero and O, Parentheses and Brackets, are so common pain points on coding and terminal fonts. Those should be painfully distinct.
I've never understood why the lowercase l and 1 so often look the same in monospace fonts. It's not like anyone actually writes an l like that — why not just a small bottom right hook? And maybe a top left hook as well? But a whole base is insanity.
Counterexample: looking at https://www.nist.gov/srd/nist-special-database-19, the example in the manual has a lowercase L that’s just a vertical line.