I don’t think anyone is embarrassed to be not supporting tor, bud. … misunderstanding basic English

Your 1st statement would actually be reasonable enough if we disregard the meaning you are trying to convey and treat the words at face value. If you had a good grasp on English and weren’t misusing the phrase tor support to begin with, your literal words are fair enough in that phrase. This is because supporting Tor requires deploying an onion host. Yet no one here has brought up the lack of onion host. The embarrassment is indeed not about lack of Tor support. It’s that they cannot handle fully serving clearnet traffic.

The Tor network needs no support because it is self-supporting. The Tor community bent over backwards to maintain gateways on the clearnet to accommodate the clearnet server without requiring any server-side support whatsoever. The Tor community is generally content as long as services do not go out of their way to sabotage the Tor network.

It’s of course not an embarrassment that the IRS does not support Tor. The embarrassment arises from the lack of competency that led them to proactively block segments of clearnet based on the crude and reckless practice of relying on IP reputation; which led to disservicing the Tor community.

There is no moral obligation to support tor.

I realize that you have dropped the direct and accurate language (tor blocking) in favor of indirect, vague, weasel words of “tor support” because you believe this choice of words will somehow serve you by deceiving your audience. By intent, your comment is perversely naive. But it’s arguably sensible enough in the literal sense of the words because moral obligation to add an onion server is debatable. Although a case could be made for a government’s moral obligation to respect and embrace data minimization, and even to the extent of deploying onion services. But when the bar of digital rights is so low, it would be premature to have that discussion particularly when you’re not even in a position to accept the idea that a tax administration owes taxpayers any dignity or respect. Which, to be clear the lack thereof is demonstrated by this messaging:

There is not even enough respect to tell Tor users that service is refused as a consequence of their IP address. Nor do they extend enough dignity to explain to those users why they block the Tor community, or which oversight office the excluded taxpayers may complain to.