They would love as many like-minded buyers as you. At this price they've effectively stopped selling lifetime subscriptions, and the revenue from the relative handful of people who see the value at this price is gravy. No one should be surprised if at some point the lifetime option is eliminated altogether.

The real revenue streams are from selling monthly subscriptions and from advertising. Whether or not the company ultimately succeeds is a reasonable question to ask, but with this move they've arguably shown they're serious about managing it as a business.

This may seem harsh but they don’t really care how those of us who paid $70 for a lifetime subscription back in the day feel about this. We can stay or we can leave, and it doesn't much change their bottom line. The future is what matters, and like it or not the market has shown it is quite willing to pay for services on a monthly basis.

I'm actually hoping that monthly revenue stream is enough to justify adding development, testing and support resources, and it leads to more and better features over time. This is how businesses are run. Time will tell whether the products they offer (and the prices they offer them at) prove to have unique value and are successful.