How do you force upper case in a topic?

On this question I wanted to show a topic of ATM. No such topic existed. In fact, there were really no topics in the preordained list that fit well for this question, which was about ATMs. So I went ahead and made up a logical list of topics. When I submitted the question, Fluther lowercased the acronym. It’s an acronym, so it should be all upper case. I tried editing the question and making it all Caps again, but again the back end turned it to lowercase.

We have a few topics that do have upper case. Do the Moderators or the Jelly Gods do that? For instance, Clinton is capitalized but both democrat and republican are all lower case. Is that just the luck of the draw, or a political statement from the Jelly Gods?

Is there some trick to get ATM to appear just like that in the Topics list of a question—to force the use of an upper case letter where it’s actually required by the rules of grammar?