This doen't seem any different from the param method in CGI::Application - sometimes you need to have data globally accessible to your code. It does act like a global, but so do session variables ... they suffer the same risks as well, but they sure are useful. If you're worried about naming collissions, you could include your namespace in your stash: 
$c->stash->{MyAppFoo} = 'store some stuff';

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In reply to Re: Catalyst and the stash by astroboy
in thread Catalyst and the stash by Mutant

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