Pattern Testing Problem

Hey everyone! So one of my patterns is in testing, and I approved some of the testers, but on of them recently changed their username, so I had to add them separately into the group message. I’m worried that they will not be able to test the pattern, since I could not message them. (Also, just a question, if someone has -1 karma, is that a glitch, or does it mean that they were a bad tester for a previous pattern?)

I would ask them if they can still finish the pattern, and since you get 1 karma for every tester call you finish I would say that maybe they didn’t finish a certain tester call.

Hope this helps:)