When reporting any player who passes IP of another server I think you would have better sense if:
a small portion of the IP is cross out since the report yourself keep up with spam that IP to this page, forum
Example:
Instead of: mincraftholaquehace.org.com.es
Do this: minecraf * h * ol *** org.com.es.
And small part of the IP is allowed to know it is spam
To upload an image and cross it off you can do it in imgur.com
a small portion of the IP is cross out since the report yourself keep up with spam that IP to this page, forum
Example:
Instead of: mincraftholaquehace.org.com.es
Do this: minecraf * h * ol *** org.com.es.
And small part of the IP is allowed to know it is spam
To upload an image and cross it off you can do it in imgur.com