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I'm trying to upvote a comment and I get a dialog box with

this comment is not valid for voting or flagging

What's that about?

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2 Answers 2

up vote 5 down vote accepted

Two reasons:

  • Between the time that you started reading the comment to when you flagged or hit the upvote, it has been deleted.

  • The post you're looking at, to which the comment belongs, is locked.

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That's a pretty unclear message, isn't it. Maybe "This comment has been deleted" would be better. –  user27414 Nov 25 '09 at 14:36
    
Yep - that appears to be exactly the case –  DanSingerman Nov 25 '09 at 14:41

It happened to me once; the comment was on the question and the question was closed locked. I assumed that was the reason. Other comments on the same question were also not upvote-able.

However, comments on answers to that question were upvote-able, so I don't know what's the idea here.

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Closed you can still vote on. Locked, not so much. –  random Nov 25 '09 at 14:44
    
Ah, didn't realize there was a difference between closed and locked (what is it, btw? no one can vote to re-open a locked question?) –  hasenj Nov 25 '09 at 22:27
1  
@hasen IIRC, "locked" might be better termed "frozen" - no votes, no comments, no edits. I think it's generally used when an all-out edit war has been taking place. "Closed" more means "no more answers". ...Of course, I might be wrong. –  Margaret Nov 25 '09 at 22:50

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