Nope, because you\'ll have same progress no matter whether you spend 1 hour or 10 hours training ingame...
If someone plays 10 hours, that\'s not power-leveling then, because he already alocated his points in the past hours, and now solely fights for the sake of fighting.
Edit: Examples:
Given 50 point to alocate on various skills.
1st hour
sword: 200exp
shield: 300 exp
mining: 500 exp
In the end: sword (10), shield (15), mining (25)
1st hour + 2nd hour
sword: 500 exp
shield: 500 exp
mining: 1500 exp
In the end: sword (10), shield (10), mining (30)