20K users can vote to delete recently closed questions and low scored answers. 10K users have limited delete vote powers, but should be able to view 20K delete votes. This would:
- Serve as training for 20K vote delete powers
- Provide additional oversight of things which might be deleted
Currently 10K users can only observe this "after the fact" which makes the opportunities to observe infrequent and doesn't make failed delete votes visible on answers at all.
Users who gain the close vote privilege have already had view close votes for a while as a "learning phase". This seems to work well. Doing similarly for 20K delete votes would make sense too I think.