I love Reddit, don't get me wrong - you can find a community of people who are passionate about pretty much any topic.
In the old world, each of these communities had their own disjointed forums - with Reddit they are all becoming centralised. If Reddit ever decides to be really evil they are very difficult to migrate away.
But if someone takes the old open source code base and starts "readit.com" i'll move.
I was affected by that recent wave of subreddit bans and started looking at alternatives.
There's plenty but none are very good.
The biggest move I've seen is people going to Discord servers. The two problems with that are: -Searching and history aren't really a thing on them -Discord does not really have a good way to make money other than nitro.
Reddit's success comes from how it has been moderated and tailored to attract new communities (other that geek and IT communities) in an open, accessible and non-anarchic way. It takes time and patience to build such an environment, and the most crucial capital of reddit right now, is its subreddits, and its army of moderators who are applying the reddit etiquette and keeping the site balanced, clean and interesting.
If you look at voat, it's a cesspool.
In short, you cannot easily create a community, it doesn't only require a website and some rules, it also requires community building, and tailoring rules that can make a good user experience. It's not easy.
I think that reddit's founders have been sailing away from money making for a long time now, because they know well that their users can quickly discover they are being used to make money. They owe the success of reddit to not giving to money interests, and frankly that's why this website have been so successful.
So I don't think you can "move" to another clone of reddit, it would still require community building and time. Also the expertise required to make load balancing work just fine on a new clone is not negligible.
Something like that seems like the next logical step after Reddit, and the way to make separate forums the main way of talking online again.
Most small-mid sized reddits have less than 20 primary contributors. If most of those contributors leave for an alternative community than a large portion of the reddit community will follow. If an admin is onboard than it will be easy to post a link to the new community on the sidebar to help migration. Plenty of online interest groups do not have their primary community hosted in reddit. Plenty of online interest groups have migrated their primary community to different platforms in the past. You might say that those <20 people will not want to leave reddit. I'd argue that reddit power users are, on average, more upset about recent changes than the average user.