[PeterisP]

There's a significant difference - posting this information here is saying that x.y.z.w is my server, and that has a privacy concern, just as saying that my (or your) phone number is 1234567890.

Anonymously submitting that x.y.z.w is a server running ssh, on the other hand, doesn't provide anything beyond what's already publicly known.

Also, your phone number is not easily enumerated. Scanning even a small range of phone numbers (i.e. attempting a connection to see if they're valid) takes significant time and effort. Finding all open standard ssh ports on the whole internet, on the other hand, can be done in minutes with a good enough connection.