That would be scary. It is possible it is related. As an update to my original post below, the Yahoo mail guys tried to ignore my ticket off on the weekend, passing it back to Rogers with a comment that showed they hadn't even read it.
There definitely seems to be a serious issue with messages getting deleted, but most people will only likely notice if they compare what comes through in their mail client to what shows on-line. The hard part for this is it's hard to know what mail you didn't get..
Symptoms to watch for:
- you get a reply to a group message for which you did not see the original message - it's likely this issue.
- someone sent you a message and you didn't receive it on your Rogers Yahoo account (if you believe the sender). I've also seen this and the confirm they didn't get a bounce back.
As you say, having your SENT messages wiped out or not getting all your messages in is a real problem that needs to be resolved and not dismissed my the mail support team. It's a real issue.