I asked TwoCatt for his files and he sent http://prntscr.com/4v3t7k Then I said that your date modified was today and this was his response http://gyazo.com/ef416fbfb81556bde87388773e9d5675
I dont see anything wrong with the file, some players do have their minecraft folders automatically updated everytime they log on, as long as they didnt log out when checking their files, there's no way they can delete the mods that are in use.