> You're comparing Horizon to cloud storage services, which I think is unfair. Horizon is focused on the sharing aspect. Uploading to Google Drive and OneDrive is not as effortless as Horizon and won't provide the same frictionless viewing experience for whoever you share the links to.

Yeah...

It's nice that you get a business opportunity out of this, but one of my first thoughts was how easy it used to be to host images on Dropbox. But they made it bad, and the other big syncing services have the same bad experience. They clearly don't want to be image hosts.