FOMO

I have just received an email from HMRC, subject line: ‘Join the trend of submitting your SA return earlier this year’.

Dear customer,
We’ve seen a growing trend in customers submitting their Self Assessment returns early. In the last five years the number of customers choosing to file their return on the first day of the tax year has almost trebled.
You have until 31‌‌ Ja‌nu‌ar‌y 2022 to send us your Self Assessment tax return and to pay any tax you may owe, but why wait?

What is this nudge-y clickbaity nonsense? Who are the idiots they think get FOMO about not filing their taxes 9 months early?