Re: What should /\08/ match and do?

I'm still digesting what people have written.  But I

What I'm hearing is that it's not ok to add warnings on long-standing 
possible usages that don't make sense at least to the person proposing 
the message, such as me with empty {}, and Ævar with the single 
character sub names.  FWIW, I think that it's a mistake to not warn on 
using a reserved term; I don't think that putting it into the docs alone 
suffices.  And there would be more unhappy people when the construct 
they were using suddenly goes away than there would be to get a 
deprecation warning in advance that they are using a reserved term.

But that's what I'm hearing.  But, Abigail originally said that it was 
ok for \08 to warn; and Nicholas agreed; but then I hear in the latest 
post on the subject from Abigail that "I'd say that pointing this 
potential problem out in the docs should be enough."  I can go either 
way.  The patch I had prepared simply silenced the warning; I can add 
text to the documents, perhaps using his sly examples, as Yves 
suggested.  And I think it is a good idea to change them to stress using 
\g{} for backreferences.

But I'm not sure we have consensus.