Ugh. Why does people requesting a feature make you so angry? Why do you get such joy from telling people they're wrong? Isn't the whole point of companies in a capitalist economy to do their best to provide what consumers want? Or do you prefer an economy in which consumers must justify their requests in front of a panel, only getting what the apparatchiks deem they really "need"?
The fact that a feature does not exist, and yet people carry on, does not imply that it would not be useful. Allow me to demonstrate the logical fallacy. By your logic: Evernote did not exist for the first 300,000 years of Homo sapiens existence, yet humanity survived, ergo Evernote is not important. Same for computers. And light bulbs. People got by just fine without any of these for eons. Therefore, no one should have spent their time developing them, and if all were to disappear, no one should complain.
Please, before you say tabs are not useful, count the number of people who have posted in this "Product feedback/feature requests" forum, requesting tabs, and then count the number who have trouble understanding why. There are 4 pages in this thread; it shouldn't take too long. I'll give you a hint: the only "nay" is you.