It seems like every time the alt-right and neo-Nazis make something a new dog whistle (remember the "ok" sign thing that started on 4chan?) the left is just like "oh fuck, I guess we better stop using that now."
I'm not sure there's a better option. It's not like it's a good idea to just go on flashing "ok" signs and pretending it hasn't been coopted by fascists, but it seems shitty and frustrating to just cede ground like that every time the alt right is just like "this is ours now."
Come to think of it, I named a project at my workplace "IG-88" a while back and didn't think about the Nazi connection until the name was already in common use. (With that name, the project in question even had a badass theme song.)