KAT is dead, the sites you're registering on are fakes and trying to steal your information. None of those torrents actually have any seeders.
I can vouch Gametorrents.co is legit, It's ran by IGGGames so they get the Codex/Reloaded/skidrow releases as soon as they drop. It's a very good site for getting game torrents. I got skyrim Special Edition recently from there, and fallout 1.7
Stop looking for KAT mirrors and move on.
Use 1337x or TPB for public torrent sites or IPT and TD for private trackers. Here's a script to hide fake/untrustable torrents on TPB to make the site a bit better.