Thanks sooo much @fplanque for creating this page! It's incredibly useful for B2evolution users. I work with the InMotion Community Support team and we were looking into the case that resulted in you creating this page. Basically, as per the report, a user was getting highly escalated traffic that was resulting in high resource usage by a B2evolution website on one of our shared hosting servers. Unfortunately, in order to keep the site from adversely affecting other accounts on the server this particular site was suspended.
There are many ways that this can happen, but the main focus of this tutorial was on recognizing a Crawler attack. Check your traffic using your available analytics tools (including B2Evolution's graph as shown above). If you are a customer of InMotion, a service ticket can also be submitted requesting an analysis of the website traffic. The question is then, how do you stop the crawler or in this case what we believe to be a case of bots hitting the site?
One of the best ways to help stem the tide is to use your .htaccess file. We have a tutorial that explains how this can be done. The title of the article is Block Unwanted Users on Your Site using .htaccess (http://www.inmotionhosting.com/support/website/security/block-unwanted-users-from-your-site-using-htaccess#block-by-user-agent). We are still in the process of investigating the issue, though the suggestion given to the user was use caching. I will be posting on the forum concerning this issue, shortly. The good news is that the site is not currently suspended. Taking the steps to block these crawlers from hammering the site will help reduce further problems.
Thanks again for your time and help!
InMotion Hosting Community Support Team