As long as you make sure you take them out including the roots they should be fine. Water them well after repotting.
Also, I imagine you could report the community owner or in the worse case, instance list the accounts of their admins, so you could dm them
The announcement is missing mentioning that any content tagged aw NSFW will not be accessible from their app. This was one of the biggest points that made the API changes impracticable for app devs, charging a very significant amount of money for a reduced experience .
Hand them over to Elon Musk, so he can sink them