Starting Bitcoin (bitcoind or Bitcoin-Qt) with -uacomment=<any_message_the_user_chooses_to_write> will (you guessed it) append any message the user chooses to write to the version string advertised to other connecting nodes on the Bitcoin network.
i.e. someone else wrote some graffiti in their version string, and you can do that too if you want to have a less anonymous node
Fully analogous to a web browser’s “User-Agent” request header. I might toss a wiseacre remark in there, if I were so foolish as to desire an anonymity set of 1.
This may not be such a bad idea with the “Server” response-header on a webserver. Well—unless, that is, you mix things up between vhosts
as all too many .onion server operators do.
Those who have received mail from me may (not) have noticed:
Edit:I was wondering how people is free to put whatever messages they want, and this comes with a negative: For example, if kids are browsing
Oh-no! Time to develop censorware “filters” for Bitcoin version strings.
N.b. that outside quotes of others, I myself have never used a vulgar word on this forum. As the only member of this forum who has ever received
+50 for an insult, as a shriek from the target of the insult, I take pride in my ability to express my thoughts (including anger) via more cogent means. I would still object to censorship of Bitcoin version strings.