If your told the weather ahead is poor by ATC would you listen or just disregard??.....
Of course I would listen. And I would say thanks. If I can't climb over or go around it, I would find out if conditions are suitable for continued IFR flight (eg. Storms/winds/ice) and request IFR clearance to continue if so.
A few have left obtaining the clearance too late and killed themselves, where weather and controlled airspace is coming down and the ground is going up.
Others have also exceeded their capabilities (not IFR equipped and certified) and ended up losing control and killing themselves.