While testing an answer to What happens to pending flags when an account is deleted?, I discovered something else: it's possible to serially downvote a single post using only one account.
Steps to reproduce:
- Have an account with enough reputation to qualify for the association bonus but no other activity on the site where you want to perform this trick (this is necessary for immediate account deletion in step 4).
- Join the community (if you didn't do so already).
- Cast a spam flag on a post.
- Delete your account. This will remove the pending flag, but not the implicit downvote by the Community user.
- Repeat steps 2 to 4.
Using a sockpuppet I did this on one of my posts on Chess Stack Exchange:
Since all flags have been resolved:
there is no option in the mod menu to clear spam flags (which would dispute them and AFAIK remove the implicit downvotes):
The serial voting reversal script won't detect and repair this case, which is consistent with it not reversing six Community-owned downvotes on real spam posts. The daily reputation recalculation doesn't seem to fix it either.