I am not as impressed with algorithmic detection systems because of the ease of evading them with algorithms, especially if the mechanics of any system will be available on Github.

All security ultimately relies on some kind of obscurity, this is true. But the first pass should deal with -dumb- evil. Smart evil is its own set of problems.

I remember that case, and I would put that in the "downvoting five terrible politics comments" category, since it wasn't disagreement on that topic spilling over to other topics.

You would. Somebody else would put it somewhere else. You don't have a common definition. Literally no matter what moderation decision is made in a high-enough profile case like that - somebody is going to be left unsatisfied that it was politics that decided the case instead of rules.