Comment on the paper by Y.Komura and Y.Okabe [arXiv:1011.3321]
  We point out that the claim of strong universality in the paper J.Phys. A 44, 015002, arXiv:1011.3321 is incorrect, as it contradicts known rigorous results. 
Aernout C.D. van Enter, Silvano Romano and Valentin A. Zagrebnov
cond-mat.stat-mech