harry potter - Did people start using the name "Voldemort" after his death

In HP universe all the Wizarding community (apart from a few people) feared using the name Voldemort when referring to The Dark Lord. I wonder if the fear would persist after the death of Voldemort.

Answer

Yes

In Harry Potter and the Cursed Child, set (on the whole) at least nineteen years after the death of Voldemort, we see many people using his name freely:

• Rose Granger-Weasley uses his name, though of course her parents would have raised her not to be afraid of it:
  

  
  

  ROSE: The rumor is that he’s Voldemort’s son, Albus.

  
  

  
  



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  So does Amos Diggory:

  
  

  
  

  AMOS: Voldemort wanted you! Not my son! You told me yourself, the words he said were, “Kill the spare.” The spare. My son, my beautiful son, was a spare.

  
  

  
  


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  Some random person named Karl Jenkins does as well:

  
  

  
  

  KARL JENKINS: Leave him and Voldemort’s child to it, I say.

  
  
  

  
  


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  As does Scorpius Malfoy, which is particularly notable since his family, as Death Eaters, had been calling Voldemort "the Dark Lord" for a rather long time:

  
  

  
  

  SCORPIUS: And now you’ve found me. Ta-da! I was hardly hiding. You know how I like to — get on early. Stops people staring. Shouting. Writing “son of Voldemort” on my trunk. That one never gets old. She really doesn’t like me, does she?

  
  

  
  


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  Even Draco Malfoy, who was terrified of Voldemort, gets in on the fun:

  
  
  

  
  

  DRACO: Voldemort is dead, Voldemort is gone.

  
  

  
  

With such a diverse range of people using Voldemort's name, we can assume it was in common currency.