The "terms of use" make it impossible to count on these for serious work. One day the author may find your use of them inappropriate.
I still find the terms very vague. For example:
- Who's morals? - What exactly "spoils the image of..."? - Illegal in what jurisdiction? - Do I not redistribute the icons if I put them on a web site?
Thanks again for your great value comment for me. Let me consider it.