I have never been a fan of the command; it only ever returned a small sample of pages that link to a known page, so I don't mention it in my workshops unless asked about it by one of the participants. When I saw the advice from Google I gave it a final go on my own domain rba.co.uk and got nearly 300,000 hits. "Wow," I thought, "amazing!" Glancing through the first few results it became obvious that Google had ignored all the punctuation and was running a text search and looking for variations on rba including RBS (Royal Bank of Scotland).
No great loss, but a sign that other more useful operators and commands may be for the chop.