Some of the topics and their respective posts cause my eyes to cross and I'd rather not have to open those threads at all.
I know exactly how you feel.
I went looking for that in a different forum, one in which I am free to ignore posters. I wish I could ignore topics there, too.
Meanwhile, I've just installed a modification that, in theory, should eventually allow users to ignore topics.
It seems to be working at the board level now. Profile / Ignore Boards Options
There is also an entry under Profile / Ignore Topics Options, but I can't find how to get topics onto that list in the first place. I may have to edit our template by hand in order to get the gizmo to appear that would let you mark the topics you want to ignore ...