Just a quickie on this, but I never realised this until today when I caught someone doing it.
Miserable users doesn't work on the archive. Meaning people smart enough (as my user was) can at least READ posts by using the archive link.
I fixed this by copying the contacts of the Miserable Users plugin at
global_bootstrap_init_start, into a new plugin at
archive_global.
It *seems* to work ok, I haven't done extensive testing though so don't blame me if anything goes wrong.