Anything made public can be scrapped nowadays with few dozen lines of JavaScript code...
The possibility of full data transfer to another #fediverse platform (of the same or different type) in few clicks should be the best anyone can hope for.
One thing these comments are overlooking, and a thing that needs to be shouted from the rooftops here, is that #ActivityPub doesn't just let the content go, doesn't just open itself up to scraping, but actually and actively broadcasts the content out into the world.
So many people don't realize how public this process is, and don't realize the privacy implications of this design. They need to if they're going to use this platform consentually as informed users.
In other words, there's no need to worry about the dangers of scraping content here. ActivityPub just hands the content to you, to do with as you please.
It didn't have to be this way, but the design choices were made, so be aware.
I know, and I'm not disagreeing. I'm just saying that under ActivityPub they don't even have to scrape. The system delivers it directly to them.