I don't have any particular issue with Ysis, but she's my window into this whole no buy thing. It's crazy that people can make money out of pretending to realise things that are just common sense - using all of things, not buying things twice, looking for good prices.
These things shouldn't be a great revelation!
And as a pp said they should be highlighting the environmental and humanitarian impact of all this buying, not just their own selfish agenda (make more money!)