It’s a good feature, and probably makes sense to default to on. But I know I’ll find it more distracting than useful, so I’ll turn it off.

Large tooltips on mouseover are usually distracting. Facicons, text, and additional windows do enough to remind me what my tabs are.

New features often aren’t helpful to each and every user, but as long as I can turn off the ones that are actively unhelpful to me, I’m perfectly happy to see them.

When poorly written or complex, maybe. I don’t know how often I’ve had to focus on a headline.

Headlines are also written to be attention grabbing. I’d rather headline-specific grammar over clickbait. Maybe there’s a different attention grabbing technique, but for now I’ll gladly settle for headlines if given a choice.

Thanks for this. As a native speaker, it never occurred to me that headlines had separate rules that would be hard to parse as a non-native speaker.