Graalians - Stalking Ghosts

I just came back to graal to see what's going on. I checked my friends list, expecting to see around 20 people on it, but what I saw was the weirdest thing I've seen on graal for a while.

The number jumped to 131...

At first I thought I must have someone added 111 people on accident, which is impossible but there was no other possibility.

But when I checked who was on it, all were people I played years ago... People I added and removed. They decided to visit me years after by magically reappearing on my friends list.

Is this some kind of a new bug? Anybody experienced this?