One other reason remakes tend to get made in any medium is that the original's storytelling methods (dialogue, cinematography, art style, acting style, whatever) are very much of their time, and this can turn off younger audiences who have different expectations of the stories they consume. I don't know how true this is generally or how justified it is in individual cases, but it's another factor. It doesn't help the case for the shot-for-shot remakes like sailor moon (at least from what I've seen of it), but I think it explains a bit for trigun (again, from what I've seen of it). I'm on my way to becoming an Old as well, and it's a little hard to accept, but the younger folks sometimes look at media that we enjoyed (and continue to enjoy) and it feels viscerally old to them.
(Also, I can't let a conversation concerning rurouni kenshin go by without feeling it needs to be mentioned that the author has been convicted of possession of cp)
This is the first season to start after I moved to lemmy and I have been disappointed at how inconsistent the discussion posts have been, and have mostly stopped checking for them. I agree with others that discussion threads for every episode of every anime would become a lot of clutter, but I personally would not really engage if the discussion threads were preemptively trimmed down to just the most popular shows (I watch an episode of everything and I think it's fun to talk about the weird quirks of the shows no one really likes).
I feel like a decent compromise would be to have the bot stop posting if no one is engaging with the posts (maybe 2 posts in a row with no/low engagement means the bot drops the show?), with a weekly miscellaneous thread for anything that got dropped or somehow missed or people working through their backlogs or whatever else
I know I can be a bit bad about posting instead of just lurking (i'm sure others can relate lol), but if the discussion threads were consistent and predictable I would be much more inclined to push myself to do my part by posting some thoughts even if they seem trivial, to try and get some discussion going