I'm confused as to why so many packages are tagged for autoremove, especially w3af?

The following packages were automatically installed and are no longer required:
empathy empathy-common espeak-data firebird2.5-common firebird2.5-common-doc
gdebi-core geoclue-2.0 gnome-dictionary gnome-mime-data gnome-packagekit
gnome-packagekit-data gnome-screenshot gnome-system-log gstreamer1.0-nice
hwdata imagemagick-common iproute libbonobo2-0 libbonobo2-common
libboost-atomic1.61.0 libboost-chrono1.61.0 libboost-date-time1.61.0
libboost-filesystem1.61.0 libboost-python1.62.0 libboost-regex1.62.0
libboost-system1.61.0 libboost-thread1.61.0 libcamel-1.2-57
libchamplain-gtk-0.12-0 libchromaprint0 libclang1-3.9 libcrypto++6
libedataserver-1.2-21 libespeak1 libfarstream-0.2-5 libfftw3-single3
libgadu3 libgdict-1.0-10 libgdict-common libgeos-3.5.0 libglew1.13
libgnome-2-0 libgnome2-common libgnomevfs2-0 libgnomevfs2-common
libgnomevfs2-extra libgupnp-igd-1.0-4 libicu55 libjavascriptcoregtk-1.0-0
libjavascriptcoregtk-3.0-0 libladr4 liblircclient0 liblouis10 libmeanwhile1
libmimic0 libmission-control-plugins0 libmysqlclient18 libnice10
libnm-glib-vpn1 libnm-gtk-common libnma-common libopencv-contrib2.4v5
libopencv-legacy2.4v5 libopencv-ml2.4v5 liborbit-2-0 libosinfo-db
libperl5.22 libpoppler61 libprotobuf-c1 libprotobuf9v5 libpurple-bin
libpurple0 libradare2-0.9.9 libschroedinger-1.0-0 libtelepathy-farstream3
libvpx3 libwebkitgtk-1.0-0 libwebkitgtk-3.0-0 libwildmidi1 libx265-79
libzephyr4 node-typescript pidgin-data prover9 python-bottle python-clamd
python-cluster python-d2to1 python-darts-lib-utils-lru python-defusedxml
python-esmre python-frozendict python-git python-gitdb python-guess-language
python-halberd python-ipaddr python-jedi python-ndg-httpsclient python-nltk
python-pdfminer python-phply python-ply python-psutil
python-pybloomfiltermmap python-pycryptopp python-pygithub python-pypdf
python-ruamel.ordereddict python-smmap python-soappy python-stopit
python-svn python-tblib python-vulndb python-waitress python-webkit
python-wstools python-xdot python3-frozendict python3-future
python3-requests-futures telepathy-gabble telepathy-haze telepathy-logger
telepathy-mission-control-5 telepathy-salut vim-addon-manager w3af
w3af-console
Use 'sudo apt autoremove' to remove them.