I am all for adding options to ignore topics, maybe
PowerGlove can again perform some of his script magic for another forum update

I expect it from PowerGlove who is genius with code and SMF patch.
Hehe, yeah I'll look into this.

I'm busy helping theymos with something that might keep me occupied for a while, and then after that I'd like to send him the 2FA patch that I've been talking about for months. Once those two things are done, I'll see about this proposal; haven't thought too deeply about it, but it seems like a good idea to me, and I think it's something that I would personally use.
I think maybe a logical place to put it would be here (bottom right):

And then, obviously something in "Modify Profile" to maintain the list of topic IDs.