We have some stuff in our minds which aims to allow a user to temporarily override the block to be able to see blocked content. For example posts in a thread would appear collapsed, hiding it at a first glance but the user could click on that post to view it content. This way a user can decide if he/she wants to view the content in order to be able to follow the entire discussion. It's intended to be a balance between blocking and still be able to follow a thread if the user wishes to.
It's a very good idea.