I choose it because I know and love it. If I gotta go figure out what the bot did, I'd much much rather try to figure out its ruby than anything else. On the browser plugin I'm making, I took one look at the js code it generated then dropped in a ruby-to-js lib.

I know the bot's not sophisticated enough to metaprogram anything, it writes straightforward code that's easy enough on the eyes, if not to my standards of style.

The idea is eventually I want to build the tooling to where I can actually start writing code again. That code will be ruby.