[dnzm]

> I really don't understand those artists and writers you mention. Why on earth would they not use their own platform to present their content?

Ease of use. Plenty of folks don't have the skills to set things up and keep them humming along, nor do they have the funds to play someone else to do it for them. So they hand over a bit of control in exchange for a platform that's set up and kept up to date.

You may argue that they're giving up too much control, and I'd agree with you, but that's not how most (non-technical) users see things.