I just found a question

Example of map from commutative ring to another commutative that preserves multiplicative identity and addition but NOT multiplication.

that has 4 downvotes and is closed as off-topic, though everything seems to be fine. There are no comments explaining what is going on (even though the user is/was new to the community). So what makes this question so "rejected"?

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    $\begingroup$ I guess the OP's not always constructive attitude displayed in some edits contributed to it. There was a comment explaining what's going on there, but that was later deleted by the commenter. $\endgroup$ – Daniel Fischer Jul 31 '17 at 12:29
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    $\begingroup$ BTW if you look at the revision history or the timeline of the post, you can see also that at the time the question was closed it looked like this. $\endgroup$ – Martin Sleziak Jul 31 '17 at 13:13
  • $\begingroup$ @MartinSleziak Thanks, looking at the revision history did not not cross my mind, but anyway, the question probably should not be (have been) closed any longer, so it is a success anyway $\endgroup$ – TStancek Jul 31 '17 at 13:18

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