I agree. I take it even further and suggest you usually avoid the plural "s" in all program identifiers. It just creates a constant source of doubt ("Did we call that 'user' or 'users'?"). If you just have a "no plural 's'" rule, then you don't waste time trying to remember particular answers to that question repeatedly.
And, going back to the case of arrays, $users[5] doesn't read as well as $user[5]. So using @users can lead to more code that is less like English if you use elements of the array more than the array itself.
- tye
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