Comment by greatgib

The idea was a little bit interesting but the problem was that they wanted to replace gmail and emails by that.

At that time, email was kind of a safe, frozen thing, interconnectable between all providers. Wave was the first step to a walled garden, and doing everything but too many things.

And in the end, people like gmail because it used to be light, fast and sleek at that time. At the opposite wave was slow and very heavy.