I can only speak for myself, but no, I've got no statistics.
I wouldn't have suspected there could be such a problem, so I haven't especially been looking out for it. Even so, the tendency in my games has been obvious at times (several games in a row).
Now I learn that at least three other people have observed the exact same phenomenon. Sounds to me like it might be worth an investigation.
(скрий) Можете да ползвате обикновен HTML в съобщенията си или, ако сте платен член, можете също да ползвате текстовия редактор. (pauloaguia) (покажи всички подсказки)