That is....even worse.

People in your party still see what you type in Yell, except now it's in bright yellow text and even more of an eyesore. Not only that, now instead of annoying just your party members with it, you're annoying everyone in an entire 24-man alliance, or anyone in the general vicinity on the overworld if its a hunt or fate. Worst of all, it can be confused with important NPC text prompts that go along with mechanics that also have a yellow-ish color, assuming you haven't changed the default colors. Just put it on /echo.