Twitter descends into chaos as users lash out over Elon Musk's blue-check reversal for celebrities: 'Feel my wrath Tesla man!'

• Twitter descended into chaos after Elon Musk's new verification system went haywire.
• Blue checks were reinstated on several accounts but users said they hadn't paid for them. 
• The confusion over the checks raises questions about Musk's plans to overhaul the legacy system.

Twitter descended into chaos at the weekend after its owner, Elon Musk, appeared to make a dramatic U-turn by returning legacy blue checkmarks to some users after previously removing them. The move threw into question the future of his controversial new check regime.