I'd like to also be able to see threads even if they were started by people on my ignore list.
I came to this forum with a similar observation.
In the CPU forum thread list I cannot see the thread called
Intel Cannonlake, Ice Lake, Tiger Lake & Sapphire Rapid Thread. I can only see the thread in the little preview available on
https://forums.anandtech.com/ if the thread happens to contain the most recent post in the entire forum. The thread was started by a user on my ignore list, and contains an important discussion on that forum. Short term it's easy to deal with, but long term it may hinder the usage of the ignore list, as some of the more opinionated people around here tend to be very active too, maybe even purposely start threads on important subjects.
Normally I would consider this a possibly difficult task, but seeing there's already an (accidental?) exception in place - the preview from the root of the forum - makes be believe there may be ways around this.