After last update useraccount avast is added Nov.30.2014

Hello, something strange I noticed, after I updated Free Avast AV in last few days (as of Nov.30.214) Same unknown account shows up (in the green field at Overview Tab). I have about 7 computers on my home (wired) network (…yeah, 4 kids and some extra laptops) and after I updated 2nd. computer, I noticed new account beside my original. Went to other (1.st updated computer) and there it was. So I did the update on the 3th.PC to see and sure it did the same. All new accounts have name xxxkarma, where xxx=is a number that differs from one computer to other, on last update, number went from around 600 to 1180. Makes me nervous. Please help.
Zdravi Martin

https://forum.avast.com/index.php?topic=160021.0