It suggests that systems or games from the past are somehow by definition less good. And that one would have to have a "hobby" or "interest" to possibly want to spend time with them. That the experience is somehow lesser.
The quietly radical thought I've been entertaining recently is that maybe "retro-computing" people have more of a right to be considered computer enthusiasts than the usual crowd you'd associate with that category, and similarly, maybe "retro-gamers" are more "gamer" than the "gamers" themselves.
Picture the two archetypes - the person who regularly investigates the near-infinite cave of treasures which is all the games humanity has produced the last 50 years (as well as sometimes some of the more modern games), or someone who plays exclusively "AAA-rated" games released the previous year, who never ventures outside of the ps or xbox store, who owns a ton of skins, and follows a few YTers who talk about games?
Who is more of an "enthusiast"? Whose fondness and engagement is more open-minded, fresher, "younger"? Who knows more? Who has more respect for the games, the developers, the hardware and software world?