This is the problem
summary
CoffeeScript example shows a real bug: `this` refers to the button not the form, so calling submit silently does nothing; fix is to bind the outer this (e.g. add a scope = this line) or use fat arrow (=>) and the code behaves. Parallel example in prose shows an ambiguous pronoun “it” that editors flag and that must be rewritten. Claim: ambiguous reference/scope in code or writing produces silent failures or unreadable text and simple, explicit binding or rewording fixes it.
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