Ability to import End Credits
I think one of the sections that need the most contribution, especially in terms of time, is the credits. Having to type each name and title into the given boxes takes quite a lot of time and can be a deterrent.
Since for most games the information is already out there, being able to copy and paste the information into a standard format (maybe word, excel etc.) and then import that into IGDB would really help.
Also, being able to edit them even after the changes have been accepted so people can add different languages/voice actors.
Might also be worth saving credit videos if that is going to continue to be the source, because a lot of the videos used have been deleted from youtube.
(edit) Also was just trying to add credits for a game that doesn't seem to have credits on Youtube. If in the eventual overhaul video referencing is still to be used, maybe the IGDB YT channel could be used to host the edits and it could be added to karma hunters that a video is required.