[Alfa1]

Originally Posted by aspen0

You mean show different content to search engines than you show to other guests Alfa1 for the purposes of SEO? That'd technically be cloaking Alfa1 and is against guidelines and while it is a minor offense and probably wouldn't result in a penalty or ban, it is not really that worth it.

All vbulletin boards do this, because member groups have different permissions than others. Most boards restrict guests from posting or from various functionality. That's the nature of the permissions system.
Cloaking would be treating guests differently than SE bots.

Originally Posted by aspen0

I have no idea why someone would become logged out, the external link does nothing with cookies. Perhaps it is a browser issue? No one else has reported that, perhaps that user's cookies got corrupted or overwritten randomly, just as they clicked the link.

I am not sure either. I always have a fair amount of members online, so bugs tend to surface quickly.

After installing your hack, my members report the following issues:
- If a member has not listed a website in profile, then this dead link is displayed on profiles: http://www.mysite.com/forum/externalredirect.php?url=
I have about 40.000 of those dead links now.
- signature pictures that are on another site, no longer display.
- the link to a members home page from postbit dropdown does not work.

Please advise.