Comment on “Finite-size scaling behavior of the tracer surface diffusion coefficient near a second-order phase transition” by F. Nieto et al.I. Vattulainen, J. Merikoski, S. C. Ying and T. Ala-NissilaEurophys. Lett., 51 3 (2000) 361-362DOI: https://doi.org/10.1209/epl/i2000-00344-9