Bans can be indefinite or temporary.
Temporary bans can be applied directly by a moderator, or can be applied automatically through accumulating warning points (see below).
You can find a list of recently banned users
in the Members section.
Warnings are used for infractions which don't warrant an immediate ban.
Each warning comes with a number of "warning points" and a duration both of which can be selected by the moderator.
If you reach the limit of unexpired warning points, currently 3, you will be temporarily banned.
The ban will last 3 days.
You can view your own warnings on your User Profile.
When you are given a warning you will receive an alert and may receive an associated conversation.
The moderator may also place a public warning on the offending content.