It’s a platform that allows and encourages Nazi content. If your ad is getting served next to Nazi content on a website that allows and encourages Nazi content, it stands to reason that you do, in fact, support Nazis because you bought the ad in the first place. Twixxer or whatever tf it’s called has undergone a lot of fast changes and sometimes corporations are slow to react so I can give the benefit of the doubt up to a certain point, but at this point we all know that you’re supporting right wing terrorists by advertising on Twitter.