As far as I'm aware, if your TV did start to provide feedback as you played you were in for a bad time.
I guess I'm thinking more holistically. Gaming is often seen still as a visual medium, but you'll know that the physical set up was part of the fun/not fun.
I suspect you might remember man parties and lugging gear around just to play with friends. In theory it wasn't exactly easy, but somehow still enjoyable for it.
Yeah, when you turned them on they frequently had push buttons with satisfying resistance and a click.
As an object they had their own tactility, often solid and heavy (as opposed to the sort of articulated physicality of most modern monitors). You could often feel the static electricity across the glass.
They even had their own sounds. The hum of warming up, the whine and clunk of being turned off.
When we talk about nostalgia it's often the sensations adjacent to the activity that we are talking about.
I think people who played those games on CRTs originally remember the feel of the visuals. It is a rather nostalgic thing.
The filters aren't the same, but they're not a bad approximation. Mist of those games were not meant to be played on modern hardware and look worse for it too.
Then there will be a ton of folk who just do it because they see other people do it. That's fine too, especially if they are enjoying themselves.
That's the point. If the filter makes you feel happier, go for it. It's an aesthetic choice.
The devil is in the details. Different contracts state different usages.
Often, I'm hired to make things for folk, and they own it entirely. I see these things out in the world, I sometimes see other artists hired to butcher it to fit a new purpose. But that's OK, I account for that, and often I hand over the source files from the things I make... Layered documents etc.
However, there's a really disturbing trend of large companies appropriating fan art and claiming that because they own the IP any derivatives belong to them too. This is far ickier.
The main thing though is credit. You'd think that giving a nod to the original artist would be nice. It costs nothing and can have a massive impact on their business.
Not viruses as such, at least according to the inventor of the term, rather they are already part of our inheritable structure, our DNA (so to speak) seeking new ways to be inherited.
It's hard to make money from Adobe when they charge you £66 a month.