Thread:Extension talk:WikiEditor/Using toolbar in field textarea/reply

You forget to mention that you're using WikiEditor inside a SF form. Maybe you could direct your question to Yaron over at Extension talk:Semantic Forms.

Where do you see the trailing bracket? If it's in the form I don't know. If it's in the page, are you trying to insert a table within a template? If so it's probably the fact that pipe characters are not interpreted as template syntax. See