Not by me. :-)

Hence my question :)

The particular case being [news://nntp.perl.org/perl.perl6.language/16066|discussed] (for example) was the replacement of

...
warn "some error message", return unless condition;
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...
warn "some error message" also return unless condition;
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Also discussed was

for( my $i=1 also my j=3; cond; $i++ also $j+=3 ){
...
[download]

I'm more than happy to see the demise of the comma-operator-separated-list in a scalar context -v- flattened-array in a scalar context anomoly, and it's replacement by (1,2,3)[-1] for those rare occasions where that is required.