Creating an alternative to Reddit would be pretty easy, but the challenge is the critical mass of users necessary for anyone to ever replace it. (We are even using a clone right now.) Another challenge would be scalability, but this is not as difficult as it was in 2005(?) when Reddit came to life. They are playing a dangerous game disrespecting their users.
We're going to see a lot more clones in the coming weeks/months, which arguably also prevents most of them from doing their intended job as a replacement. Eventually, one will form when the dust settles.
It's a slow process, but an inevitable one. Twitter has demonstrated this, where it isn't this instant switch, but a slow burn. We're only now getting Meta's take on such a replacement for example. Same will happen with Reddit now people are aware how fragile it really is. I just don't see direct replacements happening this year.
Anecdotally I do see far more aggressive displacement on Reddit than I did with Twitter however, perhaps due to how impersonal Reddit is where most feel they can abandon it much easier than a Twitter account with many professional colleagues attached.
