I'm happy with this change.
Once upon a time the Nazi's might have been some sort of boy-scouts group that promoted a healthier lifestyle (heavily paraphrased), but their symbol had been twisted into something terrible. It doesn't matter what their intentions were at the time because even today, there are those that breed, preach and even commit those atrocities. While it might just be 'a picture' to you, it is actually encouragement to others. There are people that feel validated to pursue/continue their hateful ways. It gives the impression that organized hate would be tolerated on this site. Just because you don't see it or experience it first-hand, doesn't mean it doesn't ever happen.
Ask yourself: are you interested in it because of the history? Or are you just trying to live out some fantasy you've created in your head? If you were interested in historical accuracy, you can surely still find those themes on Deviantart with actual humans! Or at art galleries outside the internet! Are you interested in certain characters? Do you appreciate them for their actual character, or do you absolutely require them to have a red band and Nazi symbol on their armband? Are you just obsessed with things that are 'controversial'? If one cannot produce quality art/writing without the depiction of their symbol, then that person might need more time to polish their skills. It's not really hard to imply what something is, especially if you know anything about the subject.
My intention isn't to mock anyone. I can only hope people will genuinely reflect on their behaviors. I do feel strongly about this however, as I had first-hand experience growing up with someone who worshiped this stuff. They still do, apparently, and had a complete meltdown and purged their entire gallery despite having content unrelated to Nazi's. I met them in HS and just assumed they were a history buff because they had a military family like I did. They also loved the game TF2 which seemed to add to their...enthusiasm. Then I learned of their interest in kiddie porn. At that time I just assumed they were cute characters in sexual situations. I didn't care for it. To me it was just an image. THEN I realized that these weren't just cute characters. They were children. And the artist spent hours of their life dedicated to the idea of (usually) r*ping children and not only that, people were spending just as much time getting off to it. I didn't realize it at first because I was still a freaky, underaged teen myself, but then when I became of age, I started noticing more and more people (usually 10+ years older than me) making it a frequent part of their 'lifestyle'. [I could spend way more time pointing out how this was wrong, but this thread technically isn't about that...]
In this case, someone is dedicating hours of their life to... what? Send a message? Honor the soldiers that fought? Are they creating silly characters to mock the threat that 'once was' or are they trying to push their own agenda and make certain extremists think that being a Nazi can be fun/rewarding? Are they writing something that involves experiencing trauma (like r*pe or PTSD from killing, like in war) or are they writing it in explicit detail because they get off to snuff? It might sound like a joke, but just look at how many people buy things impulsively or fall for things like gambling and drug addiction? You might be smart enough to see this as an image and ONLY an image, but that doesn't mean other people are. I don't think there's anything wrong in making sure hate/terrorist groups have one less platform to try and influence/brainwash people. Knowing what these organizations were about, if taking this one thing away from you is enough to make you feel distraught, if Nazi art is really the only thing you've ever known and loved (and associate with), then your health might not be the best. Not saying you have to abandon your social circles, but you might want to branch out and experience life a little more before deciding this is what you need.
You might feel angry and restricted, but sometimes 'it takes a whole village to raise a child'. Perhaps one day in the far future this can change, but in order for that to happen, generations of hate and terrorism will have to be weeded out. People still need time to heal. Since there are people still alive from when these things took place, you will more than likely never get to 'enjoy' this 'freedom' but perhaps you can pride yourself knowing the fact that you worked with others to prevent it from passing on.
Disclaimer: this is meant to be read in a neutral (but firm) and informative tone.