Thank you!

@MartinSleziak A bit unfortunately then.

Well, the table PostsWithDeleted does not contain data about the poster. See also here: Database schema documentation for the public data dump and SEDE

Some queries related to deleted posts are mentioned here: Are there some tools to follow deletions on this site? (But since I posted this link here before, I suppose you're aware of that.) Also I've seen that peterh created a few queries related to deleted posts.

This is only tangential to the discussion in here, but I will point out that there are several chatrooms where people occasionally ask questions. For example, there was a question about uniform continuity in calculus chatroom recently.

@user I am mentioning it partially because it seems that there are some users who are willing to answer questions which have been previously asked. And also it seems that some users are more interested in teaching (including helping a particular user, one on one tutoring) than in creating and maintaining Q&A repository.

If more users gets used to asking (and answering) chatrooms, a positive side-effect might be less of duplication on the main site - even if the asker fails to find where the question was asked before, more experienced users might help them to find the existing posts. (And duplication was mentioned during the recent discussion in this room.)

@MartinSleziak As I said self searching for duplicates or other methods as the one suggested by you are good and must be improved but the present way to handle the issue is completely wrong.

@MartinSleziak In principle, to avoid duplication another effective way could be delete old answer. Why exclude that hypotesis?

@MartinSleziak And why we don’t proceed with the deletion of thousand of old PSQ questions and duplicates? For the health of the site old PSQ and duplicates are good and new ones are bad? I think that the issue is how to manage the searcing among all question in an effective way to enforce partecipation.You contribution in this direction was extremely important. All the community is in debt with you.

Since you are addressing this to me, maybe I should reply.

I am personally not much of a deletionist - but you probably noticed that since you are active in some rooms related to deletions and undeletions. (Maybe I should feel guilty that I do not contribute enough to moderating the site and curating the content.)

Regarding your suggestion to delete also old post - many old posts were in fact deleted. At least enough to cause some reaction on meta, for example, you have surely seen this: Is it good practice to analyse past questions by today standards?

I have also seen many instances where an older question was closed as a duplicate of a newer question. So the actual behavior on the site do not correspond with the claim that "old PSQs are good and new ones are bad".

Compulsive unjustified closure.

I think that should be reopened and closed for duplicate.

@Nyssa That's would be a more reasonable thing! Even if I can't see an exact duplicate among the given choices.

There is a canonical question posted by Xander in the comments that fits as a duplicate. See also here about canonical questions.

@user as you mentioned here, there are alot of posts of this type. I think a canonical answer was really needed.

@user For someone who complains as much as you do about "defamation" and "unfriendliness", your characterization of the actions of others as "compulsive" and "unjustifiable" comes across as hypocritical.

@XanderHenderson Don’t take it personal, I only see now you also voted to close. I’m asserting it is compulsive since it is totally unjustified as missing context and therefore it was closed without the necessary attention. I hope you honestly can agree with me. Regards

U82

@user A lack of ability on your part to imagine how another might regard such a question as severely lacking does not immediately imply that the action of voting to close such a question is not justified.

And, again, name calling is unfriendly. If you want to be taken seriously with respect to your complaints about CoC violations, you might want to start with yourself.

@Jack do you remember by any chance when you casted the undelete vote for U82?

U83,U83-1

@XanderHenderson Name calling? Where, when? Sorry but I don't understand what you are referring to. I'm just asking to reopen a question closed without proper justifications.

@Jack Sorry I need to ask an information. How can we visualize the timeline?

@Jack Indeed, I feel the same.

@user a way to see it is to get the url from Jack's link (for example): "https://math.stackexchange.com/posts/2884490/timeline". Now every question has an unique id, so if you change 2884490 with another id then you get that question's timeline. 1 would be of course the first question asked on MSE: "https://math.stackexchange.com/posts/1/timeline"

Or perhaps a simpler way is to click on the "edited" button of a question, then modify in the url "revisions" with "timeline".

I wonder if there is a direct way.

@Nyssa Thanks a lot! I didn't know that way.

@Jack Thanks a lot!