Ahaha, you think 50 is massive? I have over 20 browser windows open, and several of those windows have literally hundreds of tabs. At various times when I've done an actual census (usually before my every-few-years purge) I've had 700 to 1500 tabs. I'm not saying you should like it or emulate me or whatever, but I can't understand what you could possibly be thinking when you say it's "unusable".

Of course, many people use browsers that can't handle it. That would make it literally unusable.