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### Why was my suggested edit rejected?

I recently proposed an edit to this answer, but my edit was rejected. Can anyone help me understand why my edit was rejected? The rejection message states "This edit defaces the post in order to ...
438 views

### Questions edited in such a way that they cannot be recognized

I specifically refer to this question, but this is not the first time I observe the following behavior: after a question is answered it is changed by the author in such a way that it cannot be anymore ...
680 views

### What is the policy for users who deliberately vandalise their own posts?

I came across this post today: proving $L^\infty$ norm inequality (disprove $\Vert f\Vert_\infty\le\sqrt{n}$) The user deliberately deleted a large chunk of his/her own post, making the question ...
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### User defacing their question

I recently noticed a question, its title was "norm of the operator". I wanted to know what the question details were. To my surprise, I found this: Dghggfssrrrrtiij Ffhjhhh ggssfvg guijvcd I ...
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### Is it within policy for instructors to edit post text to remove questions from active exams?

I am teaching an intro math class this semester, and today was the final, which was given remotely due to the pandemic. A few exam questions popped up on this site (the posts were word-for-word ...
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### Does that count as defacement?

I noticed that there is a recent habit of a particular user to edit old questions and add his own questions on the topic instead of opening a new question. I suppose that this is a precaution to ...
401 views

### Defacing a downclosed post

I'm curious what the right response is to the situation where a post gets downclosed, and then the OP defaces it. For example, Complexity of finding a hamiltonian circuit in a Great ...
563 views

### What can moderators do when a user defaces his/her own post?

Recently, there have been a number of users who deface their own questions soon after posting them. In some cases, members of the community have invested time and effort in order to answer these ...
881 views

### Vandalizing question posted by others

Today I found a rather weird case where a question had been vandalized by another user to a completely different question. I did a search here and saw a lot of posts on vandalizing questions posted by ...