I recently started seeing “[L]” at the end of all my WordPress post titles:

This was very strange and I searched high and low until I found the following post in the WordPress forums for User Access Manager:

UAM Multiple “L” indications in header and sub
https://wordpress.org/support/topic/uam-multiple-l-indications-in-header-and-sub/

I have to say not that obvious……..

In my case it was because I had only given access to my “Testers” group: