First, I would say this is one of the great Extention and I must thank the contributor. I'm looking for the below option if something already exists.
1. While someone typing for a new topic "after clicking" new topic, Can I see similar topics populating in real-time using auto search? So that, the user will come to know if exist and doesn't need to create a new one.
2. Once the new topic is created, If any already similar topic already exists, Can we get one more confirmation that "There is a similar topic already exists. Would you like to submit this topic anyway?" Once the user confirms it should create or it may be discarded.