My biggest worry is a fracturing of some communities. For tech support for various companies, different niche academic communities, etc. that had a free and easy place to have discussions instead of running their own forum. If we end up with those groups splitting and half staying on Reddit, half coming here, that's a bummer all around for someone who previously knew where they would find the best info.
On the flip side, I’d love if companies put up their own instance. Raspberry Pi hosts their own mastodon and I think it’s a good way for a company to have representation.
It is just a matter of time. Either Reddit win this war and everyone goes back to Reddit, or Reddit bankrupts and chaos rules for a while until someone else win this.