The intention is to provide a useful resource for inexperienced Perl programmers and to attract and retain experienced programmers who can make a substantial contribution to the group. However, if you're asking this question or don't buy the above rationale, there is no reason for you not to continue using clpmisc. The existence of clpmod has no bearing on clpmisc. Don't forget that there is also an unmoderated group for discussion of the Perl language, comp.lang.perl.misc, for topics that do not fall within the bounds of clpmod's charter. The perlfunc man page will give you more information on the return values from functions.
Many reusable modules are available for immediate download and use.
Another excellent dead tree resource is the first and only periodical devoted to Perl, The Perl Journal. Good luck with your Perl work. Posting to moderated newsgroups should be no different than posting to unmoderated newsgroups. New posters will automatically receive a list of Perl resources and a registration form to fill out and return. All submissions from a new or unregistered poster will be held in escrow until their registration form has been returned and accepted, after which all articles will be distributed to members of the moderation team for consideration.