Having lurched through another theme slaughter, I think there are two changes that could be made so that it isn't such an onerous task.

• Only let people submit one theme each. We clearly get enough suggestions. Even if we got one-third as many, that would still be around 1000 theme suggestions.
• Show the themes in batches of 10 rather than 1 at a time. Each theme should automatically be a "NO" and you could just click on the ones you like to make them a "YES". Button or SPACE to go to the next batch.

Good luck with the slaughter!

Here's how I went...