I turned off user confirmation to post on my forum yesterday, within about an hour I got a spam user and reverted the settings back to the way they were. However that same user(guest) who posted the spam comment has now created 15 server error logs ranging from connection timed out, no route to host.
When I click on the error log I can see its someone from asia and same username/email address that the guest spammer used. I have blocked the email address now but how are they creating the error logs and will it effect my site? Cheers!