@user21820 I voted to delete, and some hours later I found that this has been reopened. I think it may be worth flagging for moderator assistance in removing this question.
@user21820 this is really frustrating. I just fail to understand the motives for reopening this one. Will discuss the matter internally with other mods and take action soon.
@user21820 I had cast a delete vote yesterday, and the timeline shows three delete votes for that day. I do no know why those delete votes are not visible anymore.
It seems that reopening the question invalidated the delete votes.
@OliverDiaz: Why did you (inconsistently) vote to reopen that useless post?? Previously, you voted to delete!!
@ParamanandSingh Thank you very much. Previously the moderators agreed with deletion. I hope they will follow through with it, since the post really has zero value to this site. Furthermore, the moderators also said that the delete-votes should not be invalidated by reopening, so please take into account that there have been already 3 delete-votes intended (i.e. @MartinR's and two others).
@user21820 After some discussion with the other moderators, there seems to be a consensus that this is not the way things should work, i.e. if you vote-to-delete and the post is later reopened without having been deleted, you should be able to vote-to-delete again. If it happens again, I would recommend posting on the main meta site.
I flagged the second comment as "not relevant to this post" without success. One more reason to close and delete this post. It is completely opinion-based anyway.
Considering this decision, I am not surprised that the above irrationality proof still has not been deleted.
When using google to find out about research results about the Collatz conjecture, I find numerous proofs by various people who seem to be experts of the topic and an abundance of proofs by amateurs. Here are 3 examples of such proofs, where at least the first two appear to be scientists with exp...
