usenetdom means the world or sphere of Usenet. Lexicurio rates it Sui generis — a strength score of 95 out of 100.
Etymology
From Usenet + -dom.
noun
- The world or sphere of Usenet.“There IS a FAQ, one of the best in USENETdom, in the archives. We will try to post it on a regular basis. Please help in keeping it updated by suggesting books, items, products, etc.”