A trio of terrible Talents today:
Talent: Slashing Specialist - +15% Slashing damage, -25% to Crushing and Piercing damage. +5% accuracy with Slashing weapons, -15% accuracy with Crushing and Piercing weapons. Melee weapons only.
Talent: Crushing Specialist - +15% Crushing damage, -25% to Slashing and Piercing damage. +5% accuracy with Crushing weapons, -15% accuracy with Slashing and Piercing weapons. Melee weapons only.
Talent: Piercing Specialist - +15% Piercing damage, -25% to Slashing and Crushing damage. +5% accuracy with Piercing weapons, -15% accuracy with Slashing and Crushing weapons. Melee weapons only.
All of these would require One-Handed or Two-Handed Rank 3. These are mainly in for roleplaying flavour. To answer the question, yes, I would personally use these on some characters, to encourage them to stick with a weapon subtype.