"I found a small-fry cog whose work is a drop in the sea of RMT, and it wasn't banned INSTANTLY when I reported it! Clearly SE doesn't care about RMT at all!"

You know nothing about how the RMT task force works, and who their targets are. Neither do I, but to say that they do nothing is hogwash. They post reports several times per month detailing their work. Here is one recent example:

Actions Taken Against In-Game RMT & Other Illicit Activities (Jun. 25)

So your pet project RMT bot is still farming after all this time? Either he's not worth the effort, or they haven't gotten around to him - or maybe they're using him to locate and eliminate the RMT characters used to store gil. That's all that it means.

Personally, I'd like to see more reports that gilbuyers have been banned - that's the REAL way to hurt RMT, not whacking bots that will just sprout up like weeds again anyway. Hurt their customer base, make them afraid to buy gil. Unfortunately, SE's reluctant to do that, because banning real players, however dishonest they might be, is bad press.