Hi Jonas,
I am also working on the same level but almost completed my skills in this level .I have adopted two users on Wikieducator .I think adopting means helping some one who wishes to join this platform by giving assistance in editing or guiding them in doing so ! I hope so but has to get more clarification.You can record the event or ask the user to leave a note on your page ,thus we can let to know these users are adopted by us .Let me get it clear from the seniors on WE.
Best Regards
Balqis

12:22, 23 April 2012