Thanks for the write up about Tangler. We’re always interested to see how it is used in different contexts.

To delete a topic in a forum, you’ll need to go into the topic, and then click on the little ‘X’ button on the right of the topic title bar. (next to the Share link)

Hope that helps.
Please feel free to drop me a line if there’s anything else I can help with.

Cheers,
Rai
Tangler Community Manager