Only reports cloudflare IPs Almost impossible to block spammers now.

[winterband]

Since setting up cloudflare all of the IPs of all the new users are from cloudflare.  I have other social sites that still report the source IP accurately.   SMF is behind the times on this one. 

[tumbleweed]

looking at CF site.
https://support.cloudflare.com/entries/22052003-How-do-I-restore-original-visitor-IP-with-Simple-Machines-SMF-forums-
Leads to-> http://custom.simplemachines.org/mods/index.php?mod=2502

[Arantor]

There's no way SMF can magically know that you're using CloudFlare. The mod there covers it, and 2.1 will be obtaining better support for this shortly.