Supportability / operability is a big one for me - both, "what will the next team supporting this project think of this code" and "am I going to be annoyed if I get called out for this unnecessary ERROR log"? Also being much more considered for writing code that is (hopefully) more understandable than idiomatic, as folks don't necessarily come to the job with strong language knowledge, and making things understandable by all is better than a subset who know the language better