For future reference, that’s exactly it.
to find a federated community that no one else has searched for, you need to go to the searchpage on your instance, like:
https://lemmy.ml/search
then search for the whole URL, like:
https://lemmynsfw.com/c/porninfifteenseconds
then it should show up.
Although I’ve had it that the search page needed a reload and that it first showed no results and after that switched to the found community.
I mean, it’s a currently approved PR
There’s also an active Issue about replacing captchas (which are often an issue privacy-wise) with a mCaptcha, where you computer does “Bitcoin-Like” useless calculations which the server easily can verify that you did.
So it would be much more costly to make a billion spam accounts