Sorry, but I use postfix conditionals because they follow the recommendations you cited
, not because I'm obsessed with saving keystrokes.
You want to "write clearly" and "say what you mean"? Great! Postfix conditionals help you to do that, by mirroring the syntax of common English sentences, such as "I would understand the use of post-fix if construct [implied "if"] in a loop to specify exit condition.", instead of having to rewrite your plain-English thoughts to force the conditional to always be stated first.