Following packages have been out-of-date for a some time now. Maintainers hasn't replied comments and emails in more than week.
flush (http://aur.archlinux.org/packages.php?ID=25114) bleachbit (http://aur.archlinux.org/packages.php?ID=22499) gpick (http://aur.archlinux.org/packages.php?ID=24975) muttng (http://aur.archlinux.org/packages.php?ID=10892) wklej (http://aur.archlinux.org/packages.php?ID=7811) - Maintainer answered, that he forgot password and request to orphan his packages and account, if you can. -- Bartek "Barthalion" Piotrowski
