Re: Motherf***ers. I strongly doubt this is the only HP that has done this.
"I've bought actual HP cartridges"
I am a subscriber to the Instant Ink programme. A fiver a month for 100 pages, plus I can roll over up to 100 pages (it accumulates, which is nice).
I think I've printed maybe 150 pages (and since I don't have to worry about ink consumption, a fair few photos) since I installed the cartridge, and it is still reading over three quarters full.
Compare this with a standard cartridge pair that will set you back around €26 and maybe manage 100 pages of you're lucky, rather less if printing photos.
The obvious question, from the point of view of "the consumer experience" is why don't they sell these bigger tanks in the first place?