not sure but I can say this has been floating around for awhile as part of several on the fediverse with multiple dates. Since this is a cartoon they are just putting this up I think as more support than information. Here is a link from newsweek mentioning it a week or so ago and if you type in google feb 28th blackout you will see how many news places picked it up back then https://www.newsweek.com/nationwide-economic-blackout-february-28-list-stores-being-targeted-2030269 im not wild about the media coverage though as they say its all from one org and define it more narrowly than it should.