Yesterday i played with sanafur and while analyzing the replay i noticed the same unti behavior ffm2 described in this thread.
Since the subject of cheating being discussed in lobby yesterday as well and sanafur claiming using a gaming mouse, i got suspicious and took a look at the command.txt and used the script that ffm2 provided to plot this graph.
Here is an excerpt from three consecutive turns within a spike of single unit attacks that shows within just over a half second sanafur makes 21 individual attack commands on 4 enemy units — no misclicks.
commands.txt