You looked for your people. There are five communities for the topic you love. One is dead, one is private, one is hostile to newcomers. Your people are scattered across all of them, and not enough of them are in any one.
You're new to vintage espresso machine restoration. None of these, by themselves, is the room.
The active one is hostile. The private one is slow. The adjacent ones reach a third of the people who could help. If you post in all of them, you're "spamming."
You wait two weeks for an answer that comes from someone who tells you, kindly, you should really ask in the other community. Six months later, the bookmark folder is still there. You don't open it.
How Rhyme fixes this
On Rhyme the platform builds and maintains the topic structure. About 88,000 topics, hierarchically organized, curated centrally. There's no race to claim a community name and no duplicate-room hunt. The room you're looking for already exists, and posts surface in the right place automatically.