I feel like there is honestly no need for this section under Suggestions. If it won't be implemented, it's denied. Simple. There is no practical use for it.
Why would your suggestion benefit meepcraft? It would make the suggestions section easier to navigate since there will be less sub-topics to look through and it would be a lot easier to locate specific threads when the only sub-tops left are "Completed", "In the Works", "Accepted", and "Denied".
Who would this benefit? Everyone who has access to view and comment on multiple threads.
About how long will this take to be implemented, if it is accepted? 1 minute I suppose. I don't have a clear understanding on how to edit forums because I have never administrated a website before. However, I believe there should be a simple delete button somewhere.
Would this cause more lag? If anything, it would cause less (On the website that is)