There seems to be a lot of confusion about what constitutes and what doesn't constitute fitting in with the theme.
On one hand we have pop culture references, references to modern bands and celebrities and what-not, these clearly don't belong IC.
On the other hand, we have people complaining about how limited some technology is in the game and how it's unrealistic for 2100, and we have people complaining about outmoded slang being used in-game and similar complaints.
Cyberpunk isn't just future sci-fi. It's often retrofuture, especially the body of work we draw from for inspiration. What does this mean?
It means certain fashions and lingos exist in 2100 that died a hard death, or will presumably die a hard death by 2100. It means that technologies that were only conceptual in the 80s are still considered groundbreaking in 2100, whereas other technologies are more or less on-point with current projections.
Yes, we have our own slang which enriches our world; this isn't to say that older lingo isn't acceptable. Fuck, one of our terms is 'ace kool', think about that for a second. A lot of the theme drips with that 80s influence, which we can now start thinking of in 2015 as retrofuture. Pink mohawks, spiked leather, cheesy fucking slang... It's part of cyberpunk and part of our world. Along with our brick phones and suspiciously outmoded printing devices.
Obviously, technology in Withmore is different, so it can make sense to be ICly confused with technology that your character is approaching. However, time and time again it's obvious that people are forgetting that it's not merely 2100; it's 2100 in an alternate timeline, that vastly diverges from our own.
Not only this, but making assumptions about certain words being valid, or how the rest of the world is in terms of tech, or that certain trends don't exist in 2100 (I've heard of punks being called out on not existing IC. CyberPUNK anyone? Mods in cyberpunk? Leather jacket rockers?) just... isn't good for the game. When you start to co-write shit that there's no documentation to support, you throw a spanner into the works. You're not helping progress the RP. There's no good way to approach it without simply writing it off and ignoring or turning it into a he-said-she-said because there isn't a Sindome Bible of every little detail in the world. What you are doing is flatly flying in the face of the rules of improvisation.
We can universally agree to drop 2015 memetics and pop-culture references, nobody is questioning that these are invalid and lazy. But let's also remember that there are elements of our universe which are outdated, and this is a -completely different argument- from the pop-culture one.
So let's co-operate. Don't call out the world, it's horrible form and comes across clunky as hell, throwing a spanner in the works and contributing nothing. This isn't behaviour that needs calling out, making references to our modern and classical media is. We're all improvising here.
Am I wrong? Disagree with me if I am. But I believe that there is a group of well-intentioned players trying to vet others and often, I find, end up forgetting from time to time that just because it's 2100 it isn't OUR 2100. It's a dystopian Cyberpunk heavily Gibsonesque 2100.