Is it okay to submit services with .eth names such as ethereum.eth?
There are currently 218,000 registered .eth names.
.eth names require a specific browser implementation to be reachable (Brave has support built-in and other Chromium based browsers and Firefox require extensions such as MetaMask).
we support all standardized domains with additional unapproved IANA top level domains. Currently the only one in the list is .onion however we can extend that to include .eth as well.