I {{fact}}-tagged a statement which I believed to be
true but for
which I couldn't find a citation - in a BLP, as it happens - and found
it reverted with the edit summary "(x) not being related to (y) does
not need a citation!"!!! I despair...
Put it back. I think the standard guideline is that only statements
which nobody would question can be uncited ("the sky is blue" being
the standard, although not very good, example) - and quite a few
people would like citations for those anyway. The fact that you've
added a {{fact}} tag shows that it is questioned, so does need a
citation. {{fact}} tags should only be removed if you are removing the
statement, adding a citation or if there is already a citation given.