They probably meant "whois privacy"[1] (without the space). Whois is basically a way to get information about a domain name (and many other stuff).
Whois privacy just ensures that your address, name and other stuff is not public.
They were probably joking when they asked that question.
Your reply doesn't seem sarcastic, so I take it you genuinely r/whoosh'ed (that's a reference to a subreddit about situations where someone is acting clueless).
Yeah I'm increasingly seeing these reddit-style low effort jokes on here, hopefully it's transient as folks acclimatize to the culture and customs here.
