I have a dumb question.

IIUC, it needs a lot of effort to deal with implicit & correctly. I
initially used it because de manual said it was ok, but I would have
used explicit & if the manual had said so.

I wonder if we could just stop saying that & is optional and have a
simpler parsing. 

IMHO, "-tag&-todo=TODO" is totally ok. I even imagine we could say that
& and | are forbidden to say anything else than AND and OR and people
would be ok with that.

IOW, I wonder of the time and effort to deal with optional & is worth
it. WDYT?

-- 
Konubinix
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