People rightly complained / didnt use the official reddit mobile app because it was bad. Some also continued using old.reddit because they didn't like the new one. Honestly, this new thing, is bad. That's the main reason for me. It's not just a "don't want to change" thing either. The UI is lacking compared to reddit. Also the forum view, is not good imo. Both old and new versions of reddit did it better.
Also, that's a me thing, but I don't understand the layout of the page. On reddit you have a main account, 1 account to login and you can join different subs. Have all the relevant info on your front page. Here I only see the poe "sub". Where's the rest? I had my main page with new / relevant posts from all the subs I followed. Like an old man reads the newspaper for many different news, I had reddit and I can't replicate that here. That's the another deal breaker.
Finally there's so many personal account based stuff like saved posts, repositories of information, karma, replies and discussions that can't be transfered here. It just can't happen. There's also a lot of usernames and people you met and talked over the years, now that is gone. And people with streamer names that's gonna cause confusion.
I get it that reddit fucked up and communities are not "moderatable" anymore but this is such a downgrade and the transition causes many problems, I just don't see me happy using either at the end of the day.