I just stumbled across an apparent minor bug in the site search. In some cases, searching infavorites:[userid]
on a user with no marked favorites returns what appears to be every post on that sub-site. For example, I get the following search hit counts, at last check:
aria on Chem.SE — 46,464 results
Salman on Bio.SE — 34,173 results
Robert Reid on SO — 35,567,067 results
prusswan on Chess.SE — 11,691 results
RussAbbott on Physics.SE — 241,926 results
Interestingly, this doesn't happen for all users with no favorites marked, e.g.:
I imagine this is (loosely?) related to these:
The difference here is that infavorites:[validuserid]
is a valid search, so it should return zero hits for favorites-free users, I'd think?