HN marked this comment as dead. Looks like HN has some of the same problem we are talking about here

Before I noticed this comment, I made one of my own, making the same point - and it seems HN has marked it as dead for much the same reason: https://news.ycombinator.com/item?id=30069899

‘Tis ironic. (edit: thank you to whoever vouched my comment, it isn't dead any more)

While there's a touch of irony, it the HN system of letting users see dead comments and vouch for them is also a good example of how this kind of filtering can be done in a far less brutal way than outright blocks. If we could trust these filters to only be used for relatively soft touch blocks like this, then false positives wouldn't be such an issue.