Robots who like to vote

[bsvee]

A couple of times I've had robots come through and give a vote of zero to every photo in my gallery 

1. What should I add to robots.txt?

2. Is there an easy way to roll back those votes? What would be the SQL for this?

3. Anything else I can do to prevent this?

Thanks!

[Joachim Müller]

please search the forum, this has been asked many times already.