You might try writing to one of the email addresses on this page:
http://www.slackware.com/contact/
I've been told that subscribers have a good chance to see their requests materialising in future versions... ;-)
I also think that suggesting a feature on LQ will be read by the same persons --- plus the LQ community, making it a more public process; but you will have to live with the fact that all your suggestions will provoke comments and replies from our side... ;-)
gargamel