

There is currently no standard irony or sarcasm punctuation.
Until there is one, you can use some other symbol for irony punctuation. Like ⸮, ‽, ¡ or ¿.
You can also use the rolleyes emote 🙄, strategic italics, and even rAndOMcASe capitalization.
Just don’t use the SarcMark™. A trademarked punctuation mark you have to pay to use is one of the most bullshit forms of capitalist bullshit one can imagine. Fuck that shit with a white-hot iron rebar.
Oh, before I forget, there’s also the snarkmark ( .~ ). Works like the SarcMark™, but you don’t have to tell the world you are an idiot for paying to use a punctuation mark.
All horses all of the time.