The times when I see multiple entries for the same post appear I have observed the following. The count of responses differ. I have wondered whether this is the result of the page loading/refreshing while different other users are committing changes and the particular post shows up twice because of a versioning. It is possible this might occur with differing (but close in count) upvotes for a post. In short, it is a small system bug, not the result of nefarious activities. I speculate that two people arriving at the page 'near' simultaneously may be get two results. Hence one is in the twilight zone of multiple entries and the other does not see that and thinks the twilight post user is delusional or messing with them.
The times when I see multiple entries for the same post appear I have observed the following. The count of responses differ. I have wondered whether this is the result of the page loading/refreshing while different other users are committing changes and the particular post shows up twice because of a versioning. It is possible this might occur with differing (but close in count) upvotes for a post. In short, it is a small system bug, not the result of nefarious activities. I speculate that two people arriving at the page 'near' simultaneously may be get two results. Hence one is in the twilight zone of multiple entries and the other does not see that and thinks the twilight post user is delusional or messing with them.