Thanks. I love writing. What I do on Itch is nothing. I post stuff on Patreon twice a week xD
About what you said regarding Ren'Py, I honestly have no clue. The thing is, Ren'Py is used pretty massively for these kinds of games, and when you add the fact that it gets updated quite often, you end up with one game made on one version and another game on a different one. A single game might even go through several Ren'Py versions during its development. I avoid changes; I don't like switching things up (with anything, not just Ren'Py) unless it's absolutely necessary. I was only forced to change versions once because I had to format my computer and took the chance then. Fortunately, nobody has ever mentioned any performance issues to me.