Boring literally means reluctant topics right? I don't know is there any way to hide particular thread on section but if you find it is not really useful then you can report it and most of the time it will be trashed if it is really not useful for the community.
Boring means not interesting, while "reluctant" is a whole different word with
completely different meaning.
But if you want to flag threads manually - wouldn't you have to read them, which kinda defeats the purpose of avoiding boring threads.
I might have missenterperted OP, but what I think he wants is to ignore some topic which upon checking he established as boring, so it doesn't keep reappearing as people keep replying/bumping. So yeah, you would have to check it first but I don't think that would beat the purpose of "topic ignore" option.
About this bpip thing, I started using your extension few weeks ago but I didn't know about that merits per topic option. I just enabled it, useful stuff!
Boring is such a subjective sense.
what you find boring maybe isn't for another user. So there's no objective way to eradicate boring topics like we can eradicate "spam".
I don't think that dkbit98 asks for someone else to decide what's boring or not, he is asking for an option to do it by himself.
That being said, I don't think I ever came across forum with option like that. Then again, forums I used are mostly old school, bitcointalk style.