I had the strangest thing happen to me recently.
This is my server's statistics.

I had about 8,000 visits per day. At first I though it was a counter error, but later on I saw that my website traffic reached 1 gb in a few days !!! I thought that someone is trying to hack my website, but only after checking the ip's of the "intruder" I found out it was no else but googlebot!!

I have immediately uploaded robots.txt file to my server telling googlebot to go away, and the day after the visits ceased.

What went wrong? Why did googlebot keep visiting my site so many times?
I didn't even have meta information prior to the "attack".

These visits took much traffic from my server. That is some strange behaviour from something that should be the "friendliest" thing on the web.

Does anyone know what might be the reason for it? This is the first time such a thing happened eventhough it's not the first time I work with php-fusion on the same server, on different domain (with the same settings).