To be fair, "for" is one of the most overloaded prepositions in the English language. "for [use by]" and "for [doing/acting as]" are still both "for" in short h

To be fair, "for" is one of the most overloaded prepositions in the English language. "for [use by]" and "for [doing/acting as]" are still both "for" in short hand, you need more context in English to distinguish, including verbal clues that don't exist in the written language (how you pause between words and/or how you emphasize the syllable "for"). English is a strange contextual language; it is still Microsoft's marketers fault for finding and relying on so many of the weird edge cases, but they didn't invent the weird edge cases in the language.