The only thing certain is death and taxes . but unlike for example omegle and it’s successors you have to register so if it will be detected that it is a LLM it could be banned (eventually people will find out because LLM are not that good). Also i assume someone will have a incentive to do that so eventually it will try to get someone money or something like that and will probably get banned.

You can also say the same thing for every platform you communicate with people like lemmy . you might even wonder if a for profit company might have better resources to detect bots.