1- Mark as Answer-- And post that can't reply anymore to the thread
2- Mark as Duplicate.
3- Don't allow to post a topic in many categories. Instead allow to move the topic to different categories.
4- Any answer should have minimum 10 words in it.
5- Convert as Knowledge base article
6- Have membership tiers based on points earned.
7- Have community members incentive for supporting ideas
8- Before submitting an idea/opening a new thread, make it mandatory step to search for existing ideas/exiting thread to avoid duplicates.
9- When I try to add a comment to an idea and attach an image, It allows me to attach the image, but the image is not visible when I edit/view the comment.