Healthy growth is exponential, so while an initial growth may seem like near zero, as it gains traction, it should become visible.
Also if the fediverse is indeed smaller than those it competes against (can’t audit numbers, can’t trust them), thus making the potential users interested in a given topic, still spreading word of the communities or at least their posts elsewhere, like chatrooms, may help bringing people in.






Besides the recommendation to drop sites that demand privacy-breaching validations, seeking the legal venues is important too, else people will just lose ground as they try to avoid the issue.