They are not a fireable offense in my book either, but they sure as hell wouldn't pass my code review. I've had to deal with too much crap like this in the pa

They are not a fireable offense in my book either, but they sure as hell wouldn't pass my code review. I've had to deal with too much crap like this in the past. Self-proclaimed senior devs that micro-optimize everything and leave a mess, then leave. Love them. One should always optimize for easy maintenance. Performance is always a secondary goal, because it doesn't matter how fast (you think) your code is if you can't understand it.