I installed the official Reddit app and went on it to see what the old place was looking like now. My inbox was filled with spam. The "home feed" shows subs I never subscribed to. There are so many ads. Between the ads and the the extra subs in the feed, it's hard to just scroll. I also noted a lot of spam in some of the subs. Maybe they are subs with no mods? I'm not sure what's up with that.
To be fair, LLMs are still going to be able to scrape your content, and I’d say even more so since individual instance owners do not have big lawyer teams and dedicated server maintaining teams like in Reddit to protect their content from being scraped. My personal take is to just keep commenting and posting on the Fediverse and make this a better place over time, and just use adblockers whenever you need Reddit to find information.