Be nice to the other developers. We're all here to have fun, not to have our feelings hurt.
Etiquette for the Unrefined for more info.
Don't try to exploit bugs we've already fixed, you sneaky bug-hunter, you.
Our Officially Unofficial Bug Hunters Guide for more on the subject.
We like our bugs real, so no fake bugs, got it?
The Realist's Guide to Bug Realism for more on this topic.