People who review Final Fantasy 7 on Steam aren't really there to tell you about the game's quality. They're there to reminisce about their childhoods, and to shitpost.
Final Fantasy 7 came out in 1997. Since then, it's been heralded as one of the best games of all time and has an almost cultish set of devotees. You probably know all about Cloud, Sephiroth and Chocobo racing already. If you're a fan of JRPGs, it's kind of hard to avoid. Most people on Steam already know this game and it's reputation, so instead of singing its praises yet again, they have made some great jokes.