Let's fix the #1 problem with email: SPAM
Hey, here's a silly idea. Gmail doesn't need more capacity, it needs LESS spam. Why doesn't the google give us some powerful and effective anti-spam tools that allow us (the VAST majority of us who hate spam) help target and destroy the spammers' business models? If you cut them away from the few suckers who feed them money or personal data or zombie computers, then the spammers will not become decent human beings, but at least some of them will move under less visible rocks. Apart from their sociopathic greed, the spammers are also lazy bastards, and if you increase the required effort, many of them will look for easier scams.
Actually, I admit that Gmail has more anti-spammer tools than some of the other email systems. You could even argue that Gmail is the leading email system--but you'd have to twist and turn to find the justifications. For example, below is the link to one of their "best" anti-spammer tools, but if you study how it actually works, you have to conclude it is a piece of garbage compared to what it could be.
Tedious and effectively useless, but it could be made into something useful--though it has been substantially unchanged for as long as I can recall.
So why is the google so tolerant of spammers? I'm convinced it is because of the EVIL that has taken over the company. I used to think it mostly wasn't their fault. After all, the American legal system is written by the most easily corrupted politicians working for the least ethical and greediest businessmen. Of course the rules of the business game reward EVIL. Then I found out that the google is so EVIL as to be the leading lobbyist among tech firms. If you can't beat 'em, join in the EVIL game, eh?