I know this is for Jeroba but boost for lemmy has a filtered words list, you can definitely add spider to it.
It also used to have hide on read/downvote for the reddit version but it may not be implemented yet, as I can't find it in the settings. Anyway, sorry for suggesting a different app!
We have the other comment talking about spiders as a topic, is that the kind of use-case you mean OP? If not, some examples/explanation would be good, even if it's just part of building up a feature request.
I assumed they meant something like a button to hide or downvote to hide post. But I mentioned the filters since that's all I've seen currently available among the lemmy apps
Yeah I just want some way to hide or otherwise prevent myself from viewing arbitrary individual posts. A button next to the post that does that when pressed would be a convenient solution.