  Fractional quantum Hall quasiparticles are famous for having fractional
electric charge. Recent experiments report that the quasiparticles' effective
electric charge determined through tunneling current noise measurements can
depend on the system parameters such as temperature or bias voltage. Several
works proposed to understand this as a signature for edge theory properties
changing with energy scale. I consider two of such experiments and show that in
one of them the apparent dependence of the electric charge on a system
parameter is likely to be an artefact of experimental data analysis.
Conversely, in the second experiment the dependence cannot be explained in such
a way.
