Do you think, that there are many communities (especially their mods) on reddit that would be openminded to migrate to lemmy?
Imho most subreddits will "sit it out", i guess a lot of mods will more likely choose a subpar product (i guess tools for mods will still be able to access the api) than risk it to loose their "power" they have over their subs - There will always be a group of people that are willing to take over the old subs
Edit: words are hard
They are already matching serial numbers in software to verify if a part is still the original one, so I guess the next logical step would be indeed to switch to authentication modules. With that they would allow users to change the parts on their own while still making lots of money