It's actually pretty easy to adjust to. I do separate tasks in each browser.The browser would become a nightmare to use with 50 tabs open regardless of RAM. And in any case there is no use for it.
And, yes there is... They're mostly tabs with important information - or information I want to gather. I use a 'week' schedule. If I haven't used the tab in about a week, I close it. For every site I own, I have at least a few tabs open.
Just because you can't understand it doesn't mean there's no use for it. That's just silly talk.
Hmm... Actually, this browser only has 47 tabs open. All of 'em are of value to me.