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Isn’t the “vote too old to be changed” a little too eager?

Scenario:

I read the question, skim through the answers... one of them doesn't seem to answer the question so I vote it down. I come back a few minutes later after making some toast. I read through the OP's question again and it seems my original take on the question was wrong, invalidating my downvote on the answer I mentioned earlier... But... I can't revert my downvote!

Surely this needs to be fixed, no?

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marked as duplicate by alex, Jeff Atwood May 8 '10 at 14:19

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

2  
It's always the toast's fault –  jmfsg May 8 '10 at 18:00

1 Answer 1

up vote 1 down vote accepted

This is brought up constantly on meta, so I'm sure you can search and find posts about it, but one main reason you can't undo downvotes is strategic downvoting, where people post an answer and downvote other answers on the question to make their answer look better. Later, they remove the downvotes to regain lost rep and not look suspicious. The downvote undo delay used to be longer, but I think that was the main reason it was shortened quite a bit

I think it's rather obviously not a "bug" though, since it says "it's been too long, this vote is locked in" -- it's intentional behavior

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"Later, they remove the downvotes to regain lost rep and not look suspicious." Then penalize them for it with rep. Vote-locking just makes things worse because tactical downvoters can't undo the damage. –  endolith Jun 6 at 23:42
    
@endolith Well, downvote all you like; I don't control these things. I was just explaining the theory –  Michael Mrozek Jun 7 at 5:09

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