Not just individual threads, but whole ‘boards’?
I hid the Covid board a long time ago as it was full of conspiracy theorists and other obsessives, and I recently did the same with the Middle East board for similar reasons.
I’ve also hid the conception board as I was fed up with threads about ‘nub theory’ and the baby names board is just mad.
I think it’s useful to ‘curate’ MN for our own tastes for reasons of preserving sanity.