If we talk about sending 11 merits per post, then this could also be a common coincidence. Here is an example of sending 11 merits, while wanted to give 1.
https://bitcointalk.org/index.php?topic=5193860.msg53133959#msg53133959





I do not know how it works, since I was not mistaken, but it seems that when you refresh the page from which the merit is sent, you can send it twice. If one merit is sent, then when the page is refreshed, the submission will be 11 merits, if 2 merits, then 22 will be sent.
I think that QueenVera could be wrong, and later they returned merits to him.