No Errata
Q: If I play Cruel Taunt on a fighter, can that fighter later be Inspired by a ploy card that Inspires them (e.g. Inspiration Strikes)?
A: No.
Q: Can I play Cruel Taunt on a fighter that is not yet Inspired?
A: Yes.
Q: Can Voidsceptre remove the effect of Frozen in Time or Cruel Taunt?
A: No.