I would go further and say the fine tuning on code, mostly by llms generating for other llms and human sweat shops writing example code to train on is actually to teach the llms the opposite of clever code and obfuscated code. Llms try to create readable, documented code (with different levels of success). When I make them generate terse/obfuscated code, they cannot help themselves by putting too much readable things in there. I asked claude to do the moon phase one and it had the calculation correctn but could not figure out how to draw the ascii moon so it just printed the values, used emojis next to the ascii etc. But when you ask to do it with normal code, it does figure it out.