The question was "Which rules have they broken?" and they have clearly broken many.
Spez's response "yeah but they took some of them down after they got caught" doesn't change that.
Spez's response "yeah but they took some of them down after they got caught" doesn't change that.
Thus "they" (the people who run the sub) have not broken any rules, just some bad actors which presumably would have been dealt with if their posts got more attention.
If random users making bad posts that almost no one notices in highly active subs constitutes a total subreddit ban, then all subs would end up banned.
But I agree, reddit just wants the traffic, and r/the_donald does deliver on that for them.