It mainly began because she started a bullying campaign against Jamie Oliver and ended up getting her own TV slot from it, which she fucked up royally by being crap:
She's a fantasist and pleads poverty (begging her followers for money using Patreon and a tip jar) but has a Smeg fridge, wardrobe full of designer clothes and a Tracy Emin in her downstairs toilet. Oh and two failed engagements with very rich women behind her (as well as a bonus failed engagement with a normal woman).
She's a drama queen and loves a flounce:
She's now attempting her Jamie Oliver tactic on David Walliams, posting huge rants about the stereotypes of characters in his books (her son has read over 20 of them... she has only just noticed the content).
She changed her name to Jack Monroe for reasons which range from escaping a past laced with sexual assault and trauma; experiencing racism due to her Greek-Cypriot birth name; and being non-binary for a spell.