only allowing creation of voting topics (no legacy topics) for a given category (ok) or globally (better)
This is the highest leverage feature of all the features I have recently suggested. It would obsolete all others for my use case, since I want exclusively voting topics on my site
User story
I am an admin and I want to enforce topic voting everywhere on my site so that I can reap the benefits - [improved post organization, neatness, and sorting, more data via votes, more compact UI]
UI
Checkbox in settings