Okay... it seems Sir Tim Berners-Lee, the creator of the World Wide Web, has just joined the Fediverse at:
➡️ @timbl
(For those wondering about verification, this is genuine as far as I can tell. The account is on the w3c server and they only allow manually verified signups, plus the verified account of the w3c is following him.)
Thank you to @vmstan for the headsup about this!
@FediFollows @timbl @vmstan welcome, Sir Tim!