I think it would be interesting to create a “don’t suggest this” list. This list would include things that are already planned to be added (excluding confidential items), things that have been rejected or are not being planned, or even things that might be added.
Why?
This would be good to avoid repetitive or even useless suggestions, to try to keep the forum cleaner, and especially to inform people a little before making a suggestion.
And I even know that tags like “planned” exist, but I believe there are things that are planned, but weren’t exactly suggested on the forum to have a tag, and which can be suggested by someone at some point to then have a tag, but in the end, this generates the problem I mentioned at the beginning.