Shadowbanning is not a thing in threadverse.

I checked your profile and before this post your last posts seem to be from over a month ago and they all have a fair number of upvotes. If you have posted/commented after that, for some reason they have not federated to other instances (or to my instance at least).

Edit: Checking your profile via your instance shows newer posts and comments that I cannot see from my instance. Something odd is definitely going on with the federation.