Why is there a box to answer a question when the asker has blocked you? It's annoying bothering to answer only to find it won't post?

Update: You don't know if you've been blocked especially if the asker is anonymous but when you attempt to post your answer you get a red message saying there's a problem. Would it not be better not to be able to write an answer in the first place? When you try to comment on an answer where the answerer has... show more You don't know if you've been blocked especially if the asker is anonymous but when you attempt to post your answer you get a red message saying there's a problem. Would it not be better not to be able to write an answer in the first place? When you try to comment on an answer where the answerer has blocked you, there is no comment box so you don't bother. Surely the same should apply to a question.
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