Yes, I agree that it can be a disadvantage to be grouped with disposable email addresses, we have aliases that are a decade old that are still forwarding emails.

With respect to the longevity of the company, it makes a healthy profit and due to my brother's great sysops work it is fairly low maintenance except when we're making improvements.

Also, our friends and family all use it, they'd disown us if we shut it down or sold it to anyone that wouldn't respect its users :)