$example{time} = time;

Does your IDE get that right? What exactly is 'right'?

Mine does. Braced time is a string and other time is a sub. And even:

grep {time} @somearray;
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Understood right and time is a sub.

Sorry, wrong example. (I'm intentionally leaving strict off here. Enabling it would spoil the fun.) Is your IDE smart enough to catch the difference?

#!/usr/bin/perl

my %example;
$example{foo} = say;

print $example{foo}, "\n";
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->> 'say'

#!/usr/bin/perl

use 5.010;

my %example;
$example{foo} = say;

print $example{foo}, "\n";
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->> '1'

I'm returning to this post because the other one's have strayed off. Sorry about that.

What I originally meant to say is, that I like string values to be shown in exactly the same way wherever they are located. If I use quotes to denote them then this is guaranteed.

You were asking about a team and that means it's possible the members are using different IDE's / editors. If the coding convention makes it easier to look over one's shoulder and see roughly the same patterns in syntax-highlighted code then that's a win in my book. (It doesn't really matter what the actual colors are, the pattern is important.)