Insulting members or swearing in chat. Instant kick from guild for me, unless taken as a jest in the context. We are always pulling each others leg in the game chat, but we know how far we can go with each other.
Asking "can I be an officer" is ok once. Then when I have told you what I expect from you before I consider you for an officer, dont ask. You perform well, you will be promoted.
Others are just an annoyance. A warning usually stops them, but a kick puts an end to them permanently