J.K Rowling on Pottermore..?

I know the Weasley twins, Luna, Tom Felton all have accounts but nobody knows their usernames. I dont know about JK Rowling

I'm not sure if Tom Felton is actually on there or if it just rumors. :| I don't get the J.K Rowling this either, she was apparently going to participate in it along with all of us, but there doesn't seem to be much of that..

I know that Evanna Lynch and Scarlett Byrne both have Pottermore accounts, but they don't plan on telling anyone their usernames. Evanna is in Gryffindor and Scarlett is in Slytherin, so you might be friends with them without even knowing it! Tom signed up for it but I don't think he did the early access thing, so he'll probably have one in October when everyone else gets their accounts. I'm sure the other actors will get accounts in October, but I don't know if they'll actually release their usernames. Hope I helped! :)