I think you are quite deluded tbh if you think that every element of her behaviour and personality is simply her being this calculating, evil monster you have decided her to be. I get you despise her, there is plenty about her I don't like also, but I am not "trying to explain or come up with reasons" why she acts the way she does, I know she calculates and uses her followers. But none of this changes the fact she is a young woman dying and must be absolutely beside herself with terror and grief. It doesn't justify everything she does no, but as much as she may irritate me, I am still capable of having that empathy you say she relies upon and stepping back and realising that atleast some of what she does, is the only way she knows how to try and cope with what she is facing. And I can't be angry at her for that. Yes, I don't agree with a great deal of how she behaves, but I can't wipe my hands of her completely and decide oh well she's a cunt fuck her. At the end of the day, I don't really care how many holidays she has or what a tit of herself she makes on Instagram because her life is still absolutely devastating. You truly believe she is enjoying any of these holidays or brand deals? Nah, it's the thrill of the chase, no different to any drug addiction, shopping spree or even something as simple as a meal out, 9/10 the thought of it is the exciting part and once you have reality it's actually shit, but add to that knowing she's just trying to run from the fact she's dying? She's in hospital right now and as much as she may toy with everyone's emotions with her posting, there is a very real possibility she may not be leaving, she has to live with that knowledge.
Ultimately, as much of a twat as she is, I can just understand some of it is all and cut her a little slack. I realise not everyone wants to do that, but I do.