[manderley]

Apparently, many English speakers consider it to be acceptable, and have done so for more than half a century.

[Karellen]

Lots of English speakers consider "could of" to be acceptable, and have similarly done so for a few decades now. That doesn't make them right ;-)

[Akronymus]

As a non-native english speaker, I didn't even know about jibe, while knowing about jive.