@Rob NAA could work on-site, and clearly someone already flagged them as such (note comments "from review"). I'm a little hesitant at flagging R/A on-site, as it's not clear in isolation that they are abusing the system, although, IMO, they clearly are intentionally doing so (even if they are doing what you say). A custom mod-flag might be more appropriate, as that allows you to explain.
Yes, it's been 4 hours and they've not followed up with additional pearls of wisdom. If the next line is "use dictionary!" that would just cross the line (though written politely, it's combined with nuisance behavior). I think my feedback here would be "naa-" but I'll wait until I'm fully awake before affecting our stats.
For feedback here, I'm comfortable with this being blocked on a system level, so TP. I don't really see any question on which that content would be valid, particularly with the obvious effort to get around the minimum length filter.
Ah, ML filter ... They were caught by their other error which we won't discuss. By all means feedback as you feel best. I'll abstain until I'm awake. :)
