Language isn't static, it never has been, yet as soon as the notion of spell checking came about, written forms of words started to be frozen in time. If "tomorrow" is a valid rendering of "(on) t(he) morrow", I don't see why bonified is an issue.
Nobody's saying language doesn't change, but that's not an all-purpose excuse. If people notice your mistake, and it changes their understanding of what you're trying to communicate — including making them doubt your knowledge — then it's a mistake, and not an updated usage.
