Before I say anything, I would like to grant some context before I explain further. I've never actively used social media until Amethyst came along, so my opinion may be invalid. 

Personally, I think nostrs decreasing retention rate is an indication of a different issue... or perhaps solution, depending on you perspective: the decrease in retention rate may seem like a problem in terms of user numbers but can also be viewed as the possibility that many may be beginning to realize that their overuse of social media has become an addiction and not a solution to anything. 

Honestly, much of the content that I've seen on Nostr can be VERY disturbing. Social media has clearly taken a HUGE mental toll on people, especially heavy users. I don't see how a Nostr-based TikTok will help anyone. Everyone should take a break from social media! Just saying! 🤷‍♂️