Hello Piotr,

In my experience, joining a community is advantageous:

-your posts will be easily viewed by anyone interested to learn more of a topic (example: build-it which focuses on things that people can build/ make)

• anyone can easily contribute on the already existing information (like posting that this ingredient is better when cooking this type of food and so on and so forth)

I do not know how you can solve your problem on having an exclusive community wherein approved members can only post using your tribe tags. I can only suggest that you need to make a unique tag- something that will never be used by anyone.

I hope this helps.