Of course you should make sure to back things up before you start testing out deletion scripts right? :)

What is the motivation for this cleanup?

Sorry for the delay in replying, been to busy with other things.

#Matt, yes always backup before doing anything with the database, thanks for the reminder though.

#Evan, the reason for the cleanup.  I was running 1.8.11 when I had a crash.  I tried many ways to revive the site after the crash and nothing worked.  I then went ahead and upgraded to 1.9 to 1.11 one step at a time.  I tried restoring the old database but none of the old users could use the site.  So, I just left it as is and started over.  But all the old data is still on the database.  That is slowing down the site.  That is why I am trying to cleanup the old data.

By default if things are set to public when you install they will see the activity page.

I'm not familiar with the "Login Redirector" plugin so my first suggestion would to deactivate it and then flush the cache to see what happens.

Same thing happens when I disable "Login Redirector"   I always flush the cache when I change a plugin.

Thanks for the suggestion.

Same thing is happening to me with elgg 1.11. I haven't got that plugin installed. I am running elgg in walled garden, should it help.

¿It may have something related to this issue?

https://github.com/Elgg/Elgg/issues/7261

Also, googling, I've seen that this might happen when the favicon is not a public resource, so the browser understands it as the "redirect url" after login. This may happen only on walled gardens.