because you want to see the tits, not her putting beads inside her carefully hiding her whole body
It's never about objective value, it's about what people want. Also once you showed something it's gone, you can't keep showing it and expect something more. So you have to show more, until you have nothing new to show. The same reason why Belle Delphine periodically leaves.
Not even slightly, the only thing Christina has over Amouranth is that she had 1 or 2 pussy slips which Amouranth has had as well. Amouranth has done quite of bit of dildo content as well as way more tit stuff as well. Christinas mentality seems less scammy but her content isnt further ahead.