Not an active poster, but when I do post in privacy community it's !privacy@lemmy.dbzer0.com simply because programming.dev is loose with defederation. While I don't agree with certain instances political ideology something like privacy communities reach being limited because of it makes no sense.
I'll echo what others have said though that this will get resolved with multi-community support which was funded by NLnet grant. While consolidating now might seem like a good idea to help community growth, I think it's more damaging longer term than waiting for technical solution.