Has Yahoo lost all relevancy in today's market?

Not long ago, I was a big fan of Yahoo News. I found that they concentrated on the most pressing issues of the day.
Now they embed ads in the news feed and I refuse to look at Yahoo news under any circumstance.

I’m still using Yahoo email as my primary account because I have since I started an internet account.
Yahoo has recently embedded an ad at the top of the mail feed that blinks, and changes (annoyingly). Worse yet, they’ve become more and more unreliable as to putting personal emails into the spam folder, and companies that I do business with into the trash folder.

Has Yahoo completely abandoned it’s (formerly) core business? I now use Google News, and if I find a new email provider I like, I’ll be done with Yahoo.

Can Yahoo reverse that trend, still?