To most. Merlyn is one of many that disapprove of using a map in a void context. See RE: RE: My favorite looping mechanism in Perl is: and RE: Re: Array to Hash. Dominus disagrees with the broad ruling, (see Re: setting values in anonymous hash) but the general consensus is that it obfuscates your purpose.

Update: Chipmunk beat me to this answer, so take this as a "me too"