What aspect of "the IRS" is being discussed here ? I don't believe I have ever had an account with the IRS for any reason and have not interacted with them onl

What aspect of "the IRS" is being discussed here ? I don't believe I have ever had an account with the IRS for any reason and have not interacted with them online and have no plans to. On the other hand, the IRS payment portal (EFTPS), which I do use, is not mentioned anywhere in the article or here in the HN discussion thread. Is this for EFTPS access ? Or is there some other "IRS account" that I've never discerned a need for ?