I guess I was speaking to all of the guesses that people have so far as to what any long-term effects may be... I haven't heard anything that seems plausible that is worse than the organ failure that the disease itself can produce. There's a lot of Cronenberg style ideas about what could potentially happen across generations but I think all of that comes from just a complete misunderstanding of what mRNA is. But I haven't heard any long-term side effects of the vaccine that seem plausible so far.
The people talking about mRNA are largely confused except those who are talking about the potential cytotoxicity of the spike protein, it leaking into the bloodstream, and the potential short and long term consequences if that is happening with any non-zero probability (given the scale of the deployment.)