Notes. Summary of the relevant scaling relations for balanced MHD turbulence in the different regimes mentioned in Section 4 (see Appendix A for the derivation). The last two columns explicitly show the difference between the intrinsic nonlinear parameter χ^z of background fluctuations and the nonlinear parameter χ^w, q∥ of a quasi-parallel Alfvén wave interacting with those fluctuations. The locality of interactions ${\lambda }_{\perp }^w\sim {\lambda }_{\perp }^z\sim {\lambda }_{\perp }$ has been implied everywhere and that in all the regimes with dynamic alignment, a transition to a tearing-mediated range (TMT) has been assumed, i.e., that the injection-scale Lunquist number satisfies the inequality $S_0\gg M_{\mathrm{A},0}^{-4}$ ($S_0\gg M_{\mathrm{A},0}^3$) for sub-Alfvénic (super-Alfvénic) injection. See Table 2 for the consequences of not taking into account this difference between χ^w, q∥ and χ^z on the inferred turbulent damping rate of quasi-parallel Alfvén waves.