in reply to "Redundant" ne "Bad"
in thread the "@" indicates plural hence "s" is redundant

i'll agree with that. especially in for loops.
for my $widget(@widgets){ do_somthing($widget); }
reads to me as "for each widget of these widgets, do something with this widget" not perfect english, but the plurals helps me keep the element from being confused with the array. though i guess in some cases i'd use the same name.:-)
for my $deer(@deer){}