the following notice is on yosucker's webpage: "IMPORTANT! Please use the YoSucker Prototype 41 or later. The older versions contain a minor bug that may lead to the loss of messages, even if under quite specific and marginal circumstances." I believe 41 should be marked stable to avoid this issue.
I have removed everything below 51a, as I have not recived any bug reports on this and the ebuild is a lot cleaner. Thanks for reporting this.