Seeing a lot of new ideas/posts that seem familiar, I’ll sometimes go on a chase to find the original - that way it can help answer someone’s question faster. There have been plenty of times also where I have 

Cool thought: integrate an AI helper that will suggest posts/ideas that are similar. I know this kind of already exists by searching titles for the same keywords (Related Topics box that pops up when you give your post a Title - see screenshot below). 

It would be more helpful to go into the posts a bit deeper as you fill out the description to potentially find the same issue/idea you’re about to post and summarize it’s content, urge you to vote, or answer your question preemptively. 

I feel like a lot of good ideas don’t end up with enough votes because there are duplicates, and searching before posting can be cumbersome since the Community has grown so much.