unsure what your hang up is over doing it yourself but .. in the time you are bickering and coming across as a dolt here, you could have already hooked your friends up http://help.yahoo.com/l/us/yahoo/edit/c ... it-07.html
Yahoo clearly states you can create as many IDs you like ... as they are the authority for their own services, I don't think you'll have to worry about the feds raiding your compound for creating an account for the purpose you have stated.
"Can I create multiple accounts?
You can create multiple identities or aliases on your account and use them with services such as Yahoo! Chat, Yahoo! Message Boards, Yahoo! Messenger, and Yahoo! Groups.
Please note you will only be able to create one Profiles for your account.
You can access all of Yahoo! with your one Yahoo! ID. Although you can create multiple Yahoo! ID’s, it is not possible to connect them to one another
To use different identities within Yahoo! with the Yahoo! ID, you can add up to six aliases. A profile consists of a name and some information that you show to other Yahoo! members. When you sign in to Yahoo!, you can choose any of your aliases.
To create a new alias, go to your Account Information page . Make sure you are signed in, click Add An Alias . and enter the desired alias you would like to associate to your account. Be sure to click “Save” when trying to add an Alias to your account."