Yahoo issues!!!

I cleaned out my yahoo account and am waiting on one or two responses before closing it completely. This last year yahoo has been nothing but headaches for me, Early in the year, I couldn't open my e-mails issues a problem report, got that resolved. Than a few months later, I was reading my e-mails and all of a sudden all my e-mails in my inbox and a few folders just disappeared so first I tried to refresh the page, when that didn't work I logged out and logged back in, still nothing so I submitted another problems report. A week later I finally get an acknowledgement e-mail from them. Issue was never resolved, all those e-mails where lost for good. About 2 months later, the next problem arose, any e-mail over 3 to 4 weeks old would no longer open. Error message states (Subject of e-mail) is having a problem opening try again later. Well I've been trying for a few months now, still can't open them. AGAIN submitted a report. A few days later I get a acknowledgement, nothing since except a survey on how they handled my issue. HANDLED WHAT?!?!? They haven't responded at all! I gave them the lowest scores I could across the board. Now a few days ago I couldn't put in a subject, got mad and clicked the right of the subject line instead of the left. There's a 2 inch space before you can type in a subject. As far as I am concerned that the last straw!!! So I was transferring important e-mails all weekend to my new e-mail address so I can close this one. I'm through with Yahoo!!! Sorry about that tantrum, but if you have yahoo I thought you might want to be aware of this and have another e-mail address for backing up your important e-mails you refer back to.