Stealing raid points Mol Liza?

Hello, I went into raids to check everyone's progress and it had the res ABANDON button and everyone's stats. Then I went back 2 hours later and all the raid points were in one person's name, and the ABANDON button was gone! The player was Mol Liza. After I kicked him out of the guild all the points went back to normal. Do people skip threw raids and steal raid points? Has anyone ever heard about this? Should I let them back into the guild. Please help???