Jerboa

I assume you mean blocking a specific post from being seen rather than blocking the user who posted it because in the latter case you can use the three dots to the bottom right of a post. As far as I am aware there isn't a way to block specific posts at all? Do tell if there is.

I think a good implimentation would be keyword filters but the ability to conveniently remove posts from our feeds without seeing them would also be great for those of us who are more content sensitive. You should make a request on the github page.

Not exactly the convenience sought, but in Settings there should be Blocks page where one can block users, communities and instances. Only it has to be manually typed and then selected. These blocks should also be transferred if one changes instances.

You can use the small card post format

This is a fantastic request. I, unfortunately, do not need any type of daddy in my life at this time and it's rather difficult to block them in all without going to the post or community.

This already exists.