The main reason why is that Meta is a colossal vast data gathering beast, that for example flagrantly fucks around bypassing the GDPR. https://news.ycombinator.com/item?id=36583651
Now, I personally I think it's trying to swim up the waterfall & ultimately worse for everyone, but: Mastadon specifically has had a strong history of being anti-search, anti-scraping. You aren't supposed to be surveiling folks at industrial scale on the fediverse.
There's widespread skepticism about Meta respecting rules of the road. Having a huge giant shark join the pool of lots of little fish seems like a scary proposition. How we can still protect & have sovereignty over our different fedi-sites is a real question when there's a company with so much technical, economic, and popular leverages.
Now, I personally I think it's trying to swim up the waterfall & ultimately worse for everyone, but: Mastadon specifically has had a strong history of being anti-search, anti-scraping. You aren't supposed to be surveiling folks at industrial scale on the fediverse.
There's widespread skepticism about Meta respecting rules of the road. Having a huge giant shark join the pool of lots of little fish seems like a scary proposition. How we can still protect & have sovereignty over our different fedi-sites is a real question when there's a company with so much technical, economic, and popular leverages.