Bug reports are an in-game mechanism for players to report faults in the game.
A fault is something that either should not happen that does, or something that should happen but does not. When in doubt about whether something is a bug or not, it should always be reported.
Examples of bugs are:
Idea reports are an in-game mechanism for players to suggest changes that they believe would improve the playability or character of the game. These can include things such as environment and NPC chats, NPC interactions, room descriptions, or major features, new commands, spells or rituals etc.
Typo reports are for players to point out typos (misspellings, misuse of grammar, etc.).
syntax idea and
syntax typo show the different categories the bug/idea/typo can go in.