I’m pretty certain W3W are not now profitable and never will be. They’ve raised a ridiculous sum for a service which does not appear to be much-in demand.
The whole business was about trying to seek rent on the whole concept of addresses. I'm glad to see it not working out, though it would've been better if all the people involved had enough morals not to pursue such an idea in the first place.
in a different world, they might pivot to a wikimedia-like "open maps foundation", open-source everything while riding the wave of a huge amount of [new-to-them] good will, fat 501c3 donations and much smarter people than them helping fix their algorithm.