When I opened my e-mail client, strange messages started to be sent:

Dear SiPlus,

User rights on Community Central have been changed for a person whose
user page you are following.  You can see their user page here:<RANDOM USER NAME HERE>&s=wl

No edit summary was given

See for a log of all
recent rights changes. 

Thanks for being a part of Community Central community and helping to
improve the wiki!

- Wikia Community Team

But I haven't followed any users. What is that? Why I'm getting those images? Did anyone except me got messages like this?