At the time of writing, Xero has been down worldwide for hours, and frankly I’m getting a little sick of it. It’s time for me to moan. — At the time of writing, Xero has been down worldwide for hours, and frankly I’m getting a little sick of it. It’s time for me to moan. Its tagline is ‘Beautiful accounting software’, but they haven’t made any significant improvements the UI in over 10 years, or made much in…