Safari and rich formatting/keyboard shortcuts in certain web forums

I'm having an issue with keyboard shortcuts on various web forums that allow you to have rich formatting in your posts such as bold or italics.

I used to be able to type like I was using a word processing app where in the middle of typing, hit Command-B or Command-i to toggle bold or italicized words and such. And this still works in other browsers like Firefox. But in Safari now, Command-B does nothing and Command-i now launches my email program and starts a new message, dropping a link from the page I was on into the body of the email. I cannot for the life of me figure out where this came from. I see nothing in Automator or keyboard shortcuts that would do this.

Need help fixing this issue. It's super annoying.