Actually, as your subber who has missed a number of streams, I can say that I'm fairly sure I did get notified but when I clicked the "66 has made a wall post" message, I just get taken to your wall. I remember because I was thinking "oh, she must have deleted a livestream notification".
My memory is not 100% on this though since I check messages with a zombie-like alertness which is to say none. Plus, it might have changed. Depends on how many streams I've missed by now //weeps
The situation I mentioned was a while ago.
@CyndiFoster You didn't get bummed readers because they didn't even know what they missed, I'd wager.
It's all about luck and time zones, really. Also, depends on how long your streams last. Personally, I don't mind them 'cause I can just check fast if they must have ended by now and move on. Other times, it's lucky when I happen to see 'em when I'm on tapastic! With planned streams like @shazzbaa says, I'm bad with them because then I have to actually plan time, do the time zone converting and then actually remember about it at all, haha xD A spontanous "i'm streaming now" post is just right for me.