Complex sentence: The perpetuation of this file extension legacy was carried on by "warez groups" which followed after THG and is still in use to this day, hence its strong presence on Usenet newsgroups which carry binaries and on P2P file trading networks.
Split into simpler sentences: The perpetuation of this file extension legacy was carried on by warez groups which followed after THG and is still in use to this day. Hence its strong presence on Usenet newsgroups which carry binaries and on P2P file trading networks.